KINDAI UNIVERSITY


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WAKABAYASHI Tomonari

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FacultyDepartment of Science / Graduate School of Science and Engineering Research
PositionProfessor
Degree
Commentator Guidehttps://www.kindai.ac.jp/meikan/342-wakabayashi-tomonari.html
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Last Updated :2020/04/03

Education and Career

Education

  •   1987 04  - 1991 03 , Tokyo Metropolitan University, Faculty of Science
  •   1991 04  - 1993 03 , Tokyo Metropolitan University, Graduate School of Science
  •   1993 04  - 1995 03 , Tokyo Metropolitan University, Graduate School of Science

Academic & Professional Experience

  •   2013 04 ,  - 現在, Professor, School of Science and Enginering, Kindai University
  •   2007 04 ,  - 2013 03 , Associate Professor, School of Science and Engineering, Kindai University
  •   2004 04 ,  - 2007 03 , Lecturer, School of Science and Engineering, Kindai University
  •   1995 04 ,  - 2004 03 , Assistant Professor, Graduate School of Science, Kyoto University
  •   2000 05 ,  - 2001 05 , Guest Researcher, Max-Planck-Institut für Kernphysik
  •   1993 04 ,  - 1995 03 , DC1, Research Fellow, JSPS

Research Activities

Research Areas

  • Nanotechnology/Materials, Basic physical chemistry
  • Natural sciences, Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics
  • Energy, Nuclear engineering
  • Nanotechnology/Materials, Nanostructure physics
  • Nanotechnology/Materials, Nanostructure chemistry

Research Interests

  • laser vaporization, carbon cluster, laser ablation, cluster, one-photon ionization, fine particle, monocyclic ring, dehydroannulene, thermographic image, mass spectrometry, photodissociation, blackbody radiation, size separation, UV-VIS absorption, thermography, VUV laser, cold matrix, UV absorption spectrum, matrix isolation, dual wavelength measurement, IR absorption, spectroscopic identification, carbon chain molecule, matrix isolation spectroscopy, photoelectron spectroscopy, laser spectroscopy, polyyne, nanotube, fullerene, nano particle, carbon, mass spectroscopy

Published Papers

  • Determining the Coordination Number of Li+ and Glyme or Poly (ethylene glycol) in Solution using Attenuated Total Reflectance-Far Ultraviolet Spectroscopy., Ueno N, Wakabayashi T, Morisawa Y, Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, Dec. 2019 , Refereed
  • Matrix isolation spectroscopy and spectral simulations of isotopically substituted C60 molecules, Wakabayashi T, Momose T, Fajardo ME, The Journal of Chemical Physics, The Journal of Chemical Physics, 151(23), 234301, Dec. 2019 , Refereed
  • Efficient polyyne formation by ns and fs laser-induced breakdown in ethylene and acetylene gas flow, N. Takizawa, T. Kodama, H. Shiromaru, T. Wakabayashi, S. Al-Tuairqi, Qi Wang, H. Zhang, J. H. Sanderson, Carbon, Carbon, 152, 372 - 375, Nov. 2019 , Refereed
    Summary:© 2019 Elsevier Ltd We studied polyyne formation by gas phase laser-induced breakdown in ethylene and acetylene gas flow using ns and fs lasers. The results show that acetylene is the most efficient target molecule for generating polyynes with high selectivity. Of the two lasers, the fs laser achieved higher selectivity for the production of hydrogen-capped polyynes. We also confirmed strong correlations between C2 radical and polyyne production, which have already been observed for larger hydrocarbon targets. In terms of the polyyne formation mechanism, we suggest decomposition of irradiated soot to be a possible pathway, in addition to carbon chain growth by binary collisions.
  • Changes in the Electronic Transitions of Poly-Ethylene Glycol upon the Formation of a Coordinate Bond with Li+, Studied by ATR Far-Ultraviolet Spectroscopy., Ueno N, Wakabayashi T, Sato H, Morisawa Y, The journal of physical chemistry. A, The journal of physical chemistry. A, Nov. 2019 , Refereed
  • Bi2Ne: Weakly bound cluster of diatomic bismuth with neon, Asuka Endo, Miho Hatanaka, Nami Ueno, Yusuke Morisawa, Tomonari Wakabayashi, Low Temperature Physics, Low Temperature Physics, 45(7), 689 - 696, Jul. 2019 , Refereed
    Summary:© 2019 Author(s). The A-X transition of diatomic bismuth, Bi2, was revisited by laser induced fluorescence in solid Ne at 3 K. Molecular constants, i.e., vibrational frequencies of 137 cm-1 and 174 cm-1, were reproduced for the upper and lower electronic states as reported by Bondybey et al. [Chem. Phys. Lett. 76, 30 (1980)]. Two-dimensional mapping of emission spectra confirmed satellite bands in higher and lower excitation/emission energies for each of the major bands in the vibrational progression of v′-v″ (v′ = 0-5, v″ = 5-12). Based on the molecular orbital calculations, presence of clusters, Bi2Nen (n = 1-6), is proposed for possible carriers of the observed satellites. For the relatively large matrix shift of ∼67 cm-1 in solid Ne for the term energy of the A state, the diatomic bismuth is supposed to exist as a linearly coordinated cluster of Bi2Ne in the matrix.
  • UV-polarizing linear polyyne molecules aligned in PVA, R. Sata, H. Suzuki, N. Ueno, Y. Morisawa, M. Hatanaka, T. Wakabayashi, Chinese Journal of Chemical Physics, Chinese Journal of Chemical Physics, 32, 175 - 181, Apr. 2019 , Refereed
    Summary:© 2019 Chinese Physical Society. Electronic absorption bands of conjugated linear carbon chain molecules, namely polyynes H(CC) n H (n=5-7), are exploited to devise light-polarizing films applicable to the UV. Laser ablated polyynes are separated in size and dispersed in a film of polyvinyl alcohol (PVA), which is stretched to align the trapped linear polyyne molecules inside. As a nature of the structural anisotropy, transition dipole of the UV absorption for polyyne molecules is in parallel with the molecular axis and the absorption occurs only for the electromagnetic wave having the amplitude of its electric vector along the molecular axis. Aligned and fixed orientationally in the solid PVA film, polyyne molecules act as selective absorbers of one of the polarization components of incident light at particular wavelength. Using a light source of linearly polarized UV light, whose direction of polarization is rotatable, angular dependence of the absorption intensity is investigated for the stretched PVA film containing aligned polyyne molecules and analyzed in terms of an order parameter in the theory of linear dichroism.
  • Theoretical study of lanthanide-based in vivo luminescent probes for detecting hydrogen peroxide., Hatanaka M, Wakabayashi T, Journal of computational chemistry, Journal of computational chemistry, 40(2), 500 - 506, Jan. 2019 , Refereed
  • Bi2Ne: Weakly bound cluster of diatomic bismuth with neon, A. Endo, M. Hatanaka, N. Ueno, Y. Morisawa, T. Wakabayashi, Fizika Nizkikh Temperatur, Fizika Nizkikh Temperatur, 45, 807 - 815, Jan. 2019
    Summary:© 2019 Institute for Low Temperature Physics and Engineering. All rights reserved. The A-X transition of diatomic bismuth, Bi2, was revisited by laser induced fluorescence in solid Ne at 3 K. Molecular constants, i.e., vibrational frequencies of 137 cm-1 and 174 cm-1, were reproduced for the upper and lower electronic states as reported by Bondybey et al. [Chem. Phys. Lett. 76, 30 (1980)]. Two-dimensional mapping of emission spectra confirmed satellite bands in higher and lower excitation/emission energies for each of the major bands in the vibrational progression of v′-v″ (v′ = 0.5, v″ = 5-12). Based on the molecular orbital cal-culations, presence of clusters, Bi2Nen (n = 1-6), is proposed for possible carriers of the observed satellites. For the relatively large matrix shift of ∼ 67 cm-1 in solid Ne for the term energy of the A state, the diatomic bismuthis supposed to exist as a linearly coordinated cluster of Bi2Ne in the matrix.
  • Elucidation of the electronic states in polyethylene glycol by attenuated Total reflectance spectroscopy in the far-ultraviolet region., Ueno N, Wakabayashi T, Morisawa Y, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 197, 170 - 175, Jan. 2018 , Refereed
  • Computational study on the luminescence quantum yields of terbium complexes with 2,2'-bipyridine derivative ligands., Hatanaka M, Osawa A, Wakabayashi T, Morokuma K, Hasegawa M, Physical chemistry chemical physics : PCCP, Physical chemistry chemical physics : PCCP, 20(5), 3328 - 3333, Dec. 2017 , Refereed
  • Generation and reactions of thiirenium ions by the Cation Pool method, Akihiro Shimizu, Shun Horiuchi, Ryutaro Hayashi, Kouichi Matsumoto, Yu Miyamoto, Yusuke Morisawa, Tomonari Wakabayashi, Jun Ichi Yoshida, Arkivoc, Arkivoc, 2018, 97 - 113, Nov. 05 2017
    Summary:© 2018 ARKAT USA, Inc. Thiirenium ions generated and accumulated by low-temperature electrochemical oxidation of disulfides in the presence of alkynes were successfully observed by low-temperature NMR, Raman, and mass spectroscopies and were found to be stable at temperatures below -40 °C. The thiirenium ions showed ambident reactivity toward subsequently added nucleophiles to give either disubstituted alkenes or alkynes depending on the nature of the nucleophiles.
  • Simultaneous measurements of superradiance at multiple wavelength from helium excited states: II. Analysis, Chiaki Ohae, James R. Harries, Hiroshi Iwayama, Kentarou Kawaguchi, Susumu Kuma, Yuki Miyamoto, Mitsuru Nagasono, Kyo Nakajima, Itsuo Nakano, Eiji Shigemasa, Noboru Sasao, Satoshi Uetake, Tomonari Wakabayashi, Akihiro Yoshimi, Koji Yoshimura, Motohiko Yoshimura, Journal of the Physical Society of Japan, Journal of the Physical Society of Japan, 85, Jan. 01 2016
    Summary:© 2016 The Physical Society of Japan. Previous experimental studies of superradiance (SR) in multi-level systems have been explainable using the predictions of the well-known simple two-level SR model. However our recent study [K. Nakajima et al., J. Phys. Soc. Jpn. 84, 054301 (2015)] using EUV free-electron laser excitation of helium atoms, where SR was observed at wavelengths of 502, 668, and 728 nm, revealed behaviour which necessitates a full multi-level treatment of the SR development. In this paper, we report simulations of the initial excitation by the FEL pulses, and the subsequent development of multi-level SR. The results of the simulation reproduce the experimental findings, and reveal that competitive SR on two transitions with a common upper level plays an important role in the development of the system.
  • Anticorrelated formation of fullerenes and polyynes upon laser ablation of graphite under various concentrations of hydrogen sources, H. Endo, Y. Taguchi, J. Matsumoto, Y. Achiba, T. Kodama, H. Shiromaru, T. Wakabayashi, Chemical Physics Letters, Chemical Physics Letters, 642, 35 - 38, Dec. 2015 , Refereed
    Summary:© 2015 Elsevier B.V. All rights reserved. Soluble fullerenes were produced with a somewhat unexpectedly high yield (10-2 wt% of the evaporated carbons) by laser ablation of graphite in a 'room-temperature' argon gas flow. The high yield was likely due to the high temperature of the graphite after heating by the ablation laser. Laser ablation experiments using argon-diluted propane gas showed that fullerene formation was strongly inhibited by the addition of propane, while the formation of hydrogen-terminated, chain-form carbon molecules (polyynes) was enhanced. The reactivities of the fullerene precursors and chain-form carbon clusters are discussed based on the anticorrelation of the yields of fullerenes and polyynes.
  • Generation of polyyne and methylpolyyne molecules from toluene by intense femtosecond laser pulse irradiation, Ali Ramadhan, Michal Wesolowski, Tomonari Wakabayashi, Haruo Shiromaru, Tatsuya Fujino, Takeshi Kodama, Walter Duley, Joseph Sanderson, Journal of Physics: Conference Series, Journal of Physics: Conference Series, 635, Sep. 07 2015
    Summary:© Published under licence by IOP Publishing Ltd. Hydrogen-capped and methyl-capped carbon chains (polyynes) have been generated by intense femtosecond laser irradiation of pure liquid toluene. UV-Vis and Raman spectroscopy were used to confirm the presence of polyynes in the irradiated samples, and high performance liquid chromatography (HPLC) was used to separate polyynes up to C18 H2 and HC13 CH3.
  • Low temperature in situ Raman spectroscopy of an electro-generated arylbis(arylthio)sulfonium ion, Kouichi Matsumoto, Yu Miyamoto, Kazuaki Shimada, Yusuke Morisawa, Hendrik Zipse, Seiji Suga, Jun Ichi Yoshida, Shigenori Kashimura, Tomonari Wakabayashi, Chemical Communications, Chemical Communications, 51(66), 13106 - 13109, Aug. 25 2015 , Refereed
    Summary:© The Royal Society of Chemistry 2015. A low temperature in situ Raman spectroscopic method was developed for the detection of unstable intermediates in electro-organic chemistry. It was effective for monitoring the generation of ArS(ArSSAr)+ by the electrochemical oxidation of ArSSAr (Ar = p-FC6H4) in Bu4NBF4/CH2Cl2 at 195 K. The intensity of a Raman band at 427 cm-1, which is attributable to the S-S vibration of ArS(ArSSAr)+, increased with an increase in the electricity until 2/3 F of the electricity was consumed, whereas decreased with a further increase in the electricity indicating the decomposition of ArS(ArSSAr)+.
  • Polyyne formation by graphite laser ablation in argon and propane mixed gases, Y. Taguchi, H. Endo, Y. Abe, J. Matsumoto, T. Wakabayashi, T. Kodama, Y. Achiba, H. Shiromaru, Carbon, Carbon, 94, 124 - 128, Aug. 2015 , Refereed
    Summary:© 2015 Elsevier Ltd. All rights reserved. Laser ablation of graphite in argon/propane mixed gases was performed to elucidate the process of carbon cluster growth and hydrogen termination to form polyynes. The carbon-rich materials ejected by ablation were carried by the gas flow and captured by a cooled organic solvent, and then, the soluble products were analyzed by UV absorption. The yield of polyyne increased drastically with the increase of the propane ratios. The propane-ratio-dependent yields for polyynes of various lengths are consistent with a polyyne formation model based on H-abstraction reactions of carbon clusters.
  • Low-lying electronic states in bismuth trimer Bi3 as revealed by laser-induced NIR emission spectroscopy in solid Ne, Tomonari Wakabayashi, Yoriko Wada, Kyo Nakajima, Yusuke Morisawa, Susumu Kuma, Yuki Miyamoto, Noboru Sasao, Motohiko Yoshimura, Tohru Sato, Kentarou Kawaguchi, Journal of Physical Chemistry A, Journal of Physical Chemistry A, 119(11), 2644 - 2650, Mar. 19 2015 , Refereed
    Summary:© 2014 American Chemical Society. Laser-induced near-infrared (NIR) emission spectra of neutral bismuth timer, Bi3, embedded in solid neon matrixes at 3 K were recorded in a range 870-1670 nm. Using photoexcitation with low energy photons at 1064 nm, two emission band systems were newly identified by their origin bands at T0 = 6600 and 8470 cm-1. Accordingly, spectral assignment for three NIR emission band systems reported recently was partly revised for the one with its origin band at T0 = 7755 cm-1 and reconfirmed for the others at T0 = 9625 and 11 395 cm-1. Energy splitting by spin-orbit coupling between the pair of electronic energy levels in the ground state of bismuth trimer, Bi3, both having a totally symmetric vibrational mode of frequency at e = 150 cm-1, was determined to be 1870 ± 1.5 cm-1. Transitions from the pair of electronically excited states, locating at T0 = 8470 and 9625 cm-1 above the ground state and separated by spin-orbit coupling of 1155 cm-1, have relatively long decay constants of ∼0.2 and ∼0.1 ms, respectively.
  • Binding motif of terminal alkynes on gold clusters, Prasenjit Maity, Shinjiro Takano, Seiji Yamazoe, Seiji Yamazoe, Tomonari Wakabayashi, Tatsuya Tsukuda, Journal of the American Chemical Society, Journal of the American Chemical Society, 135(25), 9450 - 9457, Jun. 26 2013 , Refereed
    Summary:Gold clusters protected by terminal alkynes (1-octyne (OC-H), phenylacetylene (PA-H) and 9-ethynyl-phenanthrene (EPT-H)) were prepared by the ligand exchange of small (diameter <2 nm) Au clusters stabilized by polyvinylpyrrolidone. The bonding motif of these alkynes on Au clusters was investigated using various spectroscopic methods. FTIR and Raman spectroscopy revealed that terminal hydrogen is lost during the ligand exchange and that the Cî - C bond of the alkynyl group is weakened upon attachment to the Au clusters. Acidification of the water phase after the ligand exchange indicated that the ligation of alkynyl groups to the Au clusters proceeds via deprotonation of the alkynes. A series of precisely defined Au clusters, Au 34(PA)16, Au54(PA)26, Au 30(EPT)13, Au35(EPT)18, and Au 41-43(EPT)21-23, were synthesized and characterized in detail to obtain further insight into the interfacial structures. Careful mass analysis confirmed the ligation of the alkynes in the dehydrogenated form. An upright configuration of the alkynes on Au clusters was suggested from the Au to alkyne ratios and photoluminescence from the excimer of the EPT ligands. EXAFS analysis implied that the alkynyl carbon is bound to bridged or hollow sites on the cluster surface. © 2013 American Chemical Society.
  • Vibronic bands in the HOMO-LUMO excitation of linear polyyne molecules, Tomonari Wakabayashi, Yoriko Wada, Naoya Iwahara, Tohru Sato, Journal of Physics: Conference Series, Journal of Physics: Conference Series, 428, Apr. 29 2013 , Refereed
    Summary:Hydrogen-capped linear carbon chain molecules, namely polyynes H(C≡C)nH (n≥2), give rise to three excited states in the HOMO-LUMO excitation. Electric dipole transition from the ground state is fully allowed to one of the three excited states, while forbidden for the other two low-lying excited states. In addition to the strong absorption bands in the UV for the allowed transition, the molecules exhibit weak absorption and emission bands in the near UV and visible wavelength regions. The weak features are the vibronic bands in the forbidden transition. In this article, symmetry considerations are presented for the optical transitions in the centrosymmetric linear polyyne molecule. The argument includes Herzberg-Teller expansion for the state mixing induced by nuclear displacements along the normal coordinate of the molecule, intensity borrowing from fully allowed transitions, and inducing vibrational modes excited in the vibronic transition. The vibronic coupling considered here includes off-diagonal matrix elements for second derivatives along the normal coordinate. The vibronic selection rule for the forbidden transition is derived and associated with the transition moment with respect to the molecular axis. Experimental approaches are proposed for the assignment of the observed vibronic bands.
  • Observation of new near infrared emission band systems of small bismuth clusters in solid neon matrix, Tomonari Wakabayashi, Makiko Tomioka, Yoriko Wada, Yuki Miyamoto, Jian Tang, Kentarou Kawaguchi, Susumu Kuma, Noboru Sasao, Hajime Nanjo, Satoshi Uetake, Motohiko Yoshimura, Itsuo Nakano, European Physical Journal D, European Physical Journal D, 67(2), Feb. 2013 , Refereed
    Summary:Laser induced fluorescence (LIF) spectroscopy was applied to small bismuth clusters embedded in a solid neon matrix at 3 K. Near infrared (NIR) optical emission spectra were recorded in a range of 6200-11 600 cm-1 by an excitation with 1.79 eV photons using a pulsed dye laser system. Three new NIR band systems were identified by their origin bands at 8207, 9625 and 11 395 cm-1. Each of the NIR systems exhibited the vibrational progression with a common lower state frequency at 151 cm-1. Temporal decay profiles for selected NIR emission bands showed upper state lifetimes on the order of a hundred of microseconds, explainable by the transition between mixed spin states. Low-lying electronic states for small bismuth clusters, Bi n (n = 2-4), are discussed along the theory and experiment reported so far. © EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2013.
  • Coherence decay measurement of v = 2 vibrons in solid parahydrogen, Susumu Kuma, Yuki Miyamoto, Kyo Nakajima, Atsushi Fukumi, Kentarou Kawaguchi, Itsuo Nakano, Noboru Sasao, Minoru Tanaka, Jian Tang, Takashi Taniguchi, Satoshi Uetake, Tomonari Wakabayashi, Akihiro Yoshimi, Motohiko Yoshimura, Journal of Chemical Physics, Journal of Chemical Physics, 138(2), 024507, Jan. 14 2013 , Refereed
    Summary:The coherence decay of the v = 2 vibrational state (vibrons) of solid parahydrogen was measured via time-resolved coherent anti-Stokes Raman spectroscopy. We found that the decay curve has a non-exponential time profile in the time scale of 200 ns at a low temperature below 5 K and a low orthohydrogen impurity concentration (∼0.01%). This behavior, as also observed in the case of the v = 1 vibrons, represents a signature of band structure of the v = 2 state in the solid phase. The maximum coherence decay time of 50 ns in an exponential part was achieved, which shows excellence of the v = 2 state for coherent processes. We also found that finite temperatures, orthohydrogen impurities, and other structural inhomogeneity accelerate the decay, hiding the non-exponential feature of the vibron band. © 2013 American Institute of Physics.
  • Neutrino spectroscopy with atoms and molecules, Atsushi Fukumi, Susumu Kuma, Yuki Miyamoto, Kyo Nakajima, Itsuo Nakano, Hajime Nanjo, Chiaki Ohae, Noboru Sasao, Minoru Tanaka, Takashi Taniguchi, Satoshi Uetake, Tomonari Wakabayashi, Takuya Yamaguchi, Akihiro Yoshimi, Motohiko Yoshimura, Progress of Theoretical and Experimental Physics (PTEP), Progress of Theoretical and Experimental Physics (PTEP), (1), Dec. 2012 , Refereed
  • Photoinduced reaction of methylpolyynes H(C≡C)nCH3 (n = 5-7) and polyyne H(C≡C)5H with I2 molecules: Formation of molecular complex vs. degradation, Y. Wada, K. Koma, Y. Ohnishi, Y. Sasaki, T. Wakabayashi, European Physical Journal D, European Physical Journal D, 66, 322, Dec. 2012 , Refereed
    Summary:Methylpolyynes, H(C≡C) n CH3 (n = 5-7), were photo-irradiated under the presence of iodine molecules in hexane to confirm the formation of a series of molecular complexes, H(C≡C) n CH 3(I6) (n = 5-7), by systematic changes in their UV absorption spectra. In order to investigate the reaction mechanism, solutions of hydrogen-capped polyyne, H(C≡C)5H, and I2 molecules in hexane were irradiated with a cw-laser beam at 532 nm, then their UV absorption spectra were recorded to obtain temporal decay profiles for the polyyne C10H2. At C10H2 concentrations of about 7 μmol L-1, the rate of reaction in the decay profile for C10H2 increased with increasing I 2 concentration (8.2-126 μmol L-1) as well as with increasing laser power (0.34-6.2 mW). Based on a kinetic model, the degradation of C10H2 was shown to compete with the formation of the polyyne-iodine molecular complex, H(C≡C)5H(I6). The formation of the complex was found to be efficient under the condition that the I2 concentration is orders of magnitude higher than the C 10H2 concentration as this suppresses the degradation process. © 2012 EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg.
  • Spectroscopic characterization of a series of polyyne-iodine molecular complexes H(C≡C)nH(I6) of n = 5-9, Yoriko Wada, Yusuke Morisawa, Tomonari Wakabayashi, Chemical Physics Letters, Chemical Physics Letters, 541, 54 - 59, Jul. 10 2012 , Refereed
    Summary:A series of molecular complexes, C 2nH 2I 6 (n = 5-9), formed from size-selected hydrogen-end-capped polyyne, H(CC) nH, and iodine molecules was characterized by UV-vis and IR absorption spectroscopy for elucidating location and geometry of iodine atoms in the complex. The IR lines for the CH-stretching σ u fundamental at 3305 cm -1 and CH-bending π u fundamental at 625 cm -1 for C 2 nH 2 (n = 5-7) in CCl 4 were red-shifted by 220 and 15 cm -1, respectively, for its complex of C 2 nH 2I 6. A few lines were intensified in the low-frequency region of 850-1450 cm -1 for CC-stretching σ u modes of polyynes in the complex. © 2012 Elsevier B.V. All rights reserved.
  • Selective synthesis of organogold magic clusters Au54(CCPh)26, Prasenjit Maity, Tomonari Wakabayashi, Nobuyuki Ichikuni, Hironori Tsunoyama, Songhai Xie, Miho Yamauchi, Tatsuya Tsukuda, Chemical Communications, Chemical Communications, 48(49), 6085 - 6087, Jun. 2012 , Refereed
    Summary:Organogold clusters Au 54(C 2Ph) 26 were selectively synthesized by reacting polymer-stabilized Au clusters (1.2 ± 0.2 nm) with excess phenylacetylene in chloroform. © 2012 The Royal Society of Chemistry.
  • Isotope scrambling in the formation of cyanopolyynes by laser ablation of carbon particles in liquid acetonitrile, Tomonari Wakabayashi, Mao Saikawa, Yoriko Wada, Toshie Minematsu, Carbon, Carbon, 50(1), 47 - 56, Jan. 01 2012 , Refereed
    Summary:Cyanopolyynes, H(CC) nCN (n = 3-6), were formed by laser ablation of carbon particles in liquid acetonitrile. The molecules were separated according to the size n and characterized by UV absorption spectroscopy, mass spectroscopy in combination with gas-chromatographic separation, and nuclear magnetic resonance (NMR) spectroscopy. For the study of nascent carbon cluster distribution during the growth of the long carbon chain molecules, isotopomer distribution was analyzed by NMR spectroscopy for the product molecules. Two cyanopolyynes of HC 7N and HC 9N were isolated from solutions after laser ablation of isotope-enriched carbon powder (99% 13C) in liquid acetonitrile, CH 3CN, of natural isotopic abundance (1.1% 13C). With the observed chemical shift, δ, and spin-spin coupling constants, J CH and J CC, spectral simulation was made to determine relative abundance of possible isotopomeric forms for HC 9N. We found that the isotope of 12C, mostly from solvent molecules, contributes substantially for the part of carbon in the cyano group, -CN, in HC 9N. The isotopomer distribution observed for the sequence of H-CC-CC- was fairly explainable by a binomial, random distribution of the two carbon isotopes of 12C and 13C, reducing the concentration of 13C to 76-55%. © 2011 Elsevier Ltd. All rights reserved.
  • Photoinduced reaction of hydrogen-end-capped polyynes with iodine molecules, Yoriko Wada, Tomonari Wakabayashi, Tatsuhisa Kato, Journal of Physical Chemistry B, Journal of Physical Chemistry B, 115(26), 8439 - 8445, Jul. 07 2011 , Refereed
    Summary:Hydrogen-end-capped polyynes, H(C≡C)nH (n = 5-7), were photoirradiated in the presence of iodine molecules in nonpolar solvents to find a dramatic change in the UV/vis absorption spectrum. Absorption bands of polyynes in the UV and the band of I2 in the visible region disappeared, whereas weaker bands of polyynes were intensified in the near UV region. The emerging features are associated with vibronic bands in the symmetry-forbidden transition of the linear polyyne molecule. Stoichiometry for the reaction, i.e., C12H2 + nI2 → C 12H2I2n, was determined to be n = 3 from the concentration-dependence experiment. 13C NMR spectra for 1:3 mixture of polyyne and iodine molecules, namely C10H2/3I 2 and C12H2/3I2, exhibited five and six lines, respectively, all shifted to lower fields compared to those in the case without iodine. After removing excess I2 by reductive reagent of Na2SO3, recovery of the missing absorption bands for the components of C10H2 and I2 was observed. These observations strongly support the formation of an unique molecular complex of C2nH2I6 (n = 5-7) upon photoabsorption by an I2 molecule within a cluster of polyyne and iodine molecules, C 2nH2(I2)m (m ≥ 3). © 2011 American Chemical Society.
  • Entanglement Control of Azobenzene by Photoisomerization in NMR Quantum Computer, Taiga Yasuda, Masahito Tada-Umezaki, Mikio Nakahara, Tomonari Wakabayashi, arXiv.org, arXiv.org, quant-ph, 1004.0910, Apr. 07 2010
    Summary:Entanglement control of qubits in a photoisomerizing molecule is studied in
    the context of an NMR quantum computer by taking azobenzene as an example.
    Azobenzene has two different isomers, {\it{}trans}-azobenzene (TAB) and
    {\it{}cis}-azobenzene (CAB), which can be interconverted by photoisomerization.
    Changing molecular structure leads to change in the spin-spin coupling
    constant, and hence leads to change in entangling operation time. We first
    obtain stable structures of TAB and CAB by {\it ab initio} calculation. Then,
    we calculate the NMR spectra of these isomers and verify that they reproduce
    the chemical shift obtained experimentally with a good precision. Our result
    indicates that the coupling strength between a $^{15}$N and a $^{13}$C nuclei
    in the molecule changes by a large amount under photoisomerization.
  • Synthesis of polyyne molecules from hexane by irradiation of intense femtosecond laser pulses, Y. Sato, T. Kodama, H. Shiromaru, J. H. Sanderson, T. Fujino, Y. Wada, T. Wakabayashi, Y. Achiba, Carbon, Carbon, 48, 1673 - 1676, Apr. 2010 , Refereed
    Summary:Hydrogen-capped polyynes have been synthesized by femtosecond laser irradiation of hexane liquid. We used UV absorption to identify and high performance liquid chromatography to separate polyynes up to C12H2, and then confirmed with resonance Raman spectroscopy. The shortest hydrogen-terminated chain is found to be C6H2. A supplementary experiment on decane indicates that the formation via single step rearrangement of the parent molecule is not likely. © 2009 Elsevier Ltd. All rights reserved.
  • Interaction of carbon linear chains with silver island film studied by surface-enhanced Raman scattering, Hiroshi Tabata, Tatsuya Doi, Tomonari Wakabayashi, Shinji Hayashi, Journal of Nanoelectronics and Optoelectronics, Journal of Nanoelectronics and Optoelectronics, 4(2), 220 - 223, Aug. 2009 , Refereed
    Summary:Time evolution of SERS spectrum for sp hybridized carbon linear chains, called as polyyne C14H2, adsorbed on a silver island film was investigated to study the interaction of the polyynes with silver island film. A rapid increase of intensities of two strong bands in the SERS spectrum just after immersion of silver island film indicating adsorption of polyyne on silver surface was observed. From the increasing intensity of the SERS bands in the adsorption process, we have revealed that the two bands are commonly originated from the adsorbed polyynes. A continuous laser irradiation of the sample led to a drastical decrease of the SERS band intensities. This decrease occurred due to conversion of the adsorbed polyynes into sp2 carbon networks covering the silver surface, which was induced by laser heating. We also observed a change of the ratio of the two band intensities, which may indicate a modification of vibrational properties of the surviving polyynes on the silver surface by the surrounding sp2 carbon networks. Copyright © 2009 American Scientific Publishers All rights reserved.
  • Raman spectral features of longer polyynes HC2nH (n= 5-8) in SWNTs, T. Wakabayashi, T. Murakami, H. Nagayama, D. Nishide, D. Nishide, H. Kataura, Y. Achiba, H. Tabata, H. Tabata, S. Hayashi, H. Shinohara, European Physical Journal D, European Physical Journal D, 52, 79 - 82, Apr. 2009 , Refereed
    Summary:Size-selected linear hydrocarbon molecules, polyynes HC2nH, were contacted in solutions with single-wall carbon nanotubes (SWNTs) prepared from laser-ablated metal/carbon composite rods (Rh/Pt/C) to produce polyyne-encapsulating SWNTs, HC2nH@SWNT(RhPt). New Raman spectral features were observed at 2120, 2061, 2017, 1982, and 1963 cm-1 for five polyynes of n=4-8, respectively, and identified as the vibrational excitation of symmetric stretching modes of the molecules inside the SWNTs. The Raman spectra were compared with those observed for polyynes on Ag islands (SERS) and in solutions. The filling factor was investigated from the concentration dependence of the Raman intensity for HC10H@SWNT(NiCo) to give an estimate of one polyyne molecule per ~350 carbon atoms of SWNTs, providing a picture for head-to-tale filling of aligned C10H 2 molecules inside the SWNTs. © 2009 EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg.
  • FULLERENE C(60): A POSSIBLE MOLECULAR QUANTUM COMPUTER, Wakabayashi Tomonari, MOLECULAR REALIZATIONS OF QUANTUM COMPUTING 2007, MOLECULAR REALIZATIONS OF QUANTUM COMPUTING 2007, 2, 163 - 192, 2009 , Refereed
  • Laser induced emission spectra of polyyne molecules C2nH2 (n = 5-8), Tomonari Wakabayashi, Hiroyuki Nagayama, Kota Daigoku, Yosuke Kiyooka, Kenro Hashimoto, Chemical Physics Letters, Chemical Physics Letters, 446(1-3), 65 - 70, Sep. 26 2007 , Refereed
    Summary:New optical emission spectra of linear carbon molecules, polyynes C2nH2 (n = 5-8), were observed upon UV-laser excitation of the 0-0 band of the dipole-allowed transition, 1 Σu + ← X 1 Σg +, of size-separated polyyne molecules in hexane. The emission spectra of C10H2 showed distinct peaks at 436 and 480 nm with a separation of ∼2100 cm-1 for a stretching vibration of the sp-carbon chain. Weak absorption features were also recorded in near-UV regions in shorter wavelengths to compare with the emission spectra. The spectral features in the emission were assigned to the vibronic bands of the forbidden electronic transition, 1 Δu → X 1 Σg +. © 2007 Elsevier B.V. All rights reserved.
  • Influence of cumulenic chains on the vibrational and electronic properties of sp-sp2 amorphous carbon, L. Ravagnan, P. Piseri, M. Bruzzi, S. Miglio, G. Bongiorno, A. Baserga, C. S. Casari, A. Li Bassi, C. Lenardi, Y. Yamaguchi, T. Wakabayashi, C. E. Bottani, P. Milani, Physical Review Letters, Physical Review Letters, 98, 216103, May 2007 , Refereed
    Summary:We report the production and characterization of a form of amorphous carbon with sp-sp2 hybridization (atomic fraction of sp hybridized species 20%) where the predominant sp bonding appears to be (=C=C=)n cumulene. Vibrational and electronic properties have been studied by in situ Raman spectroscopy and electrical conductivity measurements. Cumulenic chains are substantially stable in high vacuum conditions for temperatures lower than 250 K and they influence the electrical transport properties of the sp-sp2 carbon through a self-doping mechanism by pinning the Fermi level closer to one of the mobility gap edges. Upon heating above 250 K the cumulenic species decay to form graphitic nanodomains embedded in the sp2 amorphous matrix thus reducing the activation energy of the material. This is the first example of a pure carbon system where the sp hybridization influences bulk properties. © 2007 The American Physical Society.
  • Raman spectroscopy of size-selected linear polyyne molecules C2nH2 (n = 4-6) encapsulated in single-wall carbon nanotubes, D. Nishide, T. Wakabayashi, T. Sugai, T. Sugai, R. Kitaura, H. Kataura, Y. Achiba, H. Shinohara, H. Shinohara, Journal of Physical Chemistry C, Journal of Physical Chemistry C, 111(13), 5178 - 5183, Apr. 2007 , Refereed
    Summary:Polyyne molecules (C2nH2, n = 4-6) encaged inside single-wall carbon nanotubes (SWNTs) are investigated by Raman spectroscopy. The Raman bands observed in the region of 2000-2200 cm-1 are identified as due to axial-stretching fundamentals, V2-v4 (σg in D∞h), of the linear carbon molecules. For C 10H2 and C12H2, the overtone bands at ∼4100 cm-1 and combination bands of the polyyne and graphitic modes at ∼3600 cm-1 are also observed. The two-phonon excitations may be responsible, for the observed resonance Raman peaks via new electronic states generated by the dispersion interaction exerted between encapsulated polyynes and nanotubes. The vibrational frequencies of the polyyne molecules in SWNTs increase as the diameter distributions of SWNTs decrease. The interaction is also responsible for the observed frequency shifts and broadening of the Raman bands. © 2007 American Chemical Society.
  • Resonance Raman spectra of polyyne molecules C10H2 and C12H2 in solution, Tomonari Wakabayashi, Hiroshi Tabata, Hiroshi Tabata, Tatsuya Doi, Hiroyuki Nagayama, Koji Okuda, Rui Umeda, Rui Umeda, Ichiro Hisaki, Ichiro Hisaki, Motohiro Sonoda, Motohiro Sonoda, Yoshito Tobe, Yoshito Tobe, Toshie Minematsu, Kenro Hashimoto, Shinji Hayashi, Shinji Hayashi, Chemical Physics Letters, Chemical Physics Letters, 433(4-6), 296 - 300, Jan. 12 2007 , Refereed
    Summary:Resonance Raman spectra of hydrogen-capped linear carbon molecules, polyynes H(-C {triple bond, long} C-)nH (n = 5,6), were measured in n-hexane. For C10H2, the peaks at 2123 cm-1 and 2017 cm-1 were identified as the ν3(σg) and ν4(σg) modes in D∞h symmetry, respectively. For C12H2, the peaks of ν3(σg) at 2097 cm-1 and ν4 (σg) at 2053 cm-1 were identified. The relative intensities of the first-order Stokes lines and their resonance enhancement are discussed in terms of the Franck-Condon overlap and resonance absorption relevant to the fully-allowed electronic transition of 1 Σu + ↔ over(X, ∼)1 Σg +. © 2006 Elsevier B.V. All rights reserved.
  • Single-wall carbon nanotubes encaging linear chain C10H2 polyyne molecules inside, Daisuke Nishide, Hirofumi Dohi, Tomonari Wakabayashi, Eiji Nishibori, Shinobu Aoyagi, Masashi Ishida, Satoshi Kikuchi, Ryo Kitaura, Toshiki Sugai, Toshiki Sugai, Makoto Sakata, Hisanori Shinohara, Hisanori Shinohara, Chemical Physics Letters, Chemical Physics Letters, 428(4-6), 356 - 360, Sep. 20 2006 , Refereed
    Summary:A new hybrid material C10H2@SWNTs, single-wall carbon nanotubes (SWNTs) encapsulating C10H2 polyyne molecules, has been synthesized and confirmed by Raman spectroscopy and X-ray diffraction measurement. The C10H2 polyyne molecules composed of linearly bonded sp-carbon atoms are aligned inside the SWNTs. This hybrid material exhibits a characteristic Raman signal at 2066 cm-1 attributable to the stretching vibration of the C10H2 molecules interacting with SWNTs. Being trapped inside the SWNTs, the otherwise unstable C10H2 molecules are shown to be stable well above 300 °C under dry-air conditions. © 2006 Elsevier B.V. All rights reserved.
  • Approaches to size-selective formation of fullerenes by cyclization of highly reactive polyyne chains, Rui Umeda, Motohiro Sonoda, Tomonari Wakabayashi, Tomonari Wakabayashi, Yoshito Tobe, Chemistry Letters, Chemistry Letters, 34(12), 1574 - 1579, Dec. 2005 , Refereed
    Summary:As an approach to size-selective formation of fullerenes, we developed a method based on the cyclization of reactive cyclic polyynes which were generated by [2 + 2] cycloreversion of [4.3.2]propellatriene units. This method was proven to work successfully for the first time for the formation of fullerene ions C60 + and C60 - in the gas phase. This protocol is useful for generation of a small three-dimensional carbon cluster ion C36 - and a large fullerene C78 -, as well. Copyright © 2005 The Chemical Society of Japan.
  • Carbon-Rich Compounds: Acetylene-Based Carbon Allotropes, Yoshito Tobe, Tomonari Wakabayashi, Acetylene Chemistry: Chemistry, Biology, and Material Science, Acetylene Chemistry: Chemistry, Biology, and Material Science, 387 - 426, Oct. 24 2005
  • Time-of flight mass spectroscopy of carbon clusters and hydrocarbons produced by laser ablation of graphite under H2 and He buffer gas -Formation and stability of C10 and C2nH2 (n = 2-5)-, Yoshiyasu Kato, Tomonari Wakabayashi, Takamasa Momose, Tadamasa Shida, J. Mass Spectrometry Soc. Japan, J. Mass Spectrometry Soc. Japan, 53(4), 203 - 210, Apr. 2005 , Refereed
    Summary:The products from laser ablated graphite under the flow of H<sub>2</sub> and He buffer gases were analyzed by time-of-flight (TOF) mass spectroscopy in combination with one-photon ionization of an energy of 10.5 eV/photon. By changing the time interval between the ablation laser pulse and the photoionization laser pulse it was found that the neutral clusters ablated from the graphite have three distinctly different velocities for one and the same value of <i>m</i>/<i>z</i>, which was detected as three separate bunches of TOF mass peaks. The effect of changing the time interval was examined extensively. As a result, it was found that the first component that appeared earlier in the ionization region consisted of various bared carbon clusters C<sub><i>n</i></sub> with <i>n</i>≥6 and hydrocarbons C<sub><i>n</i></sub>H<sub><i>m</i></sub> with <i>n</i>≥4 and <i>m</i>=1 through 4 while the second and third components that arrived later were C<sub>10</sub> and C<sub>2<i>n</i></sub>H<sub>2</sub> (<i>n</i>=2 through 5) only. This persistence of C<sub>10</sub> and C<sub>2<i>n</i></sub>H<sub>2</sub> at longer delay times was attributed to the robustness of these clusters against collisions occurring in ablated plumes. It was inferred that the robustness is due to the chemical inertness of a monocyclic form for C<sub>10</sub> and of a linear polyynic form, H(-C≡C)<sub><i>n</i></sub>-H, for C<sub>2<i>n</i></sub>H<sub>2</sub>. In the He buffer gas heated to 600 K the yield of the third (slowest) component of C<sub>10</sub> enhanced drastically, which indicates that thermal collisions in plumes favor the production of this monocycle, which further suggests that the monocycle may play a crucial role in the formation of C<sub>60</sub>, known as a favored product in hot plumes of ablated graphite.
  • Generation and characterization of highly strained dibenzotetrakisdehydro[12]- and dibenzopentakisdehydro[14]annulenes, Ichiro Hisaki, Takeshi Eda, Motohiro Sonoda, Hiroyuki Niino, Tadatake Sato, Tomonari Wakabayashi, Yoshito Tobe, Journal of Organic Chemistry, Journal of Organic Chemistry, 70(5), 1853 - 1864, Mar. 04 2005 , Refereed
    Summary:(Chemical Equation Presented) To generate dibenzotetrakisdehydro[12]- and dibenzopentakisdehydro[14]annulenes ([12]- and [14]-DBAs) having a highly deformed triyne moiety, [4.3.2]propellatriene-anneleted dehydro[12]- and dehydro[14]annulenes were prepared as their precursors. UV irradiation of the precursors resulted in the photochemical [2 + 2] cycloreversion to generate the strained [12]- and [14]DBAs, respectively. The [12]DBA was not detected by 1H NMR spectroscopy, but it was intercepted as Diels-Alder adducts in solution, suggesting its intermediacy. Its spectroscopic characterization was successfully carried out by UV-vis spectroscopy in a 2-methyltetrahydrofuran (MTHF) glass matrix at 77 K and by FT-IR spectroscopy in an argon matrix at 20 K. On the other hand, the [14]DBA was stable enough for observation by 1H and 13C NMR spectra in solution, though it was not isolated because of the low efficiency of the cycloreversion. The [14]DBA was also characterized by interception as Diels-Alder adducts in solution and by UV-vis spectroscopy in a MTHF glass matrix at 77 K. The kinetic stabilities of the DBAs are compared with the related dehydrobenzoannulenes with respect to the topology of the π-systems. In addition, the tropicity of the [14]DBA is discussed based on its experimental and theoretical 1H NMR chemical shifts. © 2005 American Chemical Society.
  • Size-selective formation of C78 fullerene from a three-dimensional polyyne precursor, Yoshito Tobe, Rui Umeda, Motohiro Sonoda, Tomonari Wakabayashi, Chemistry - A European Journal, Chemistry - A European Journal, 11(5), 1603 - 1609, Feb. 2005 , Refereed
    Summary:Multicyclic cagelike cyclophanes 2a and 2b containing cyclobutene rings have been prepared as precursors of three-dimensional polyynes C 78H18 (1a) and C78H12Cl6 (1b), respectively. Laser irradiation of 2a and 2b induced expulsion of the aromatic fragment, indane, to give the three-dimensional polyyne anions C 78H18 - and C78H12Cl 6 -, respectively. Whereas the former anion lost only four hydrogen atoms to form C78H14 -, complete loss of all hydrogen and chlorine atoms was observed from the latter anion, to yield a C78 - ion that has a fullerene structure which was proven by its characteristic fragmentation pattern. © 2005 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
  • UV and IR absorption spectra of C3 embedded in solid para-hydrogen, Hiromichi Hoshina, Yoshiyasu Kato, Yusuke Morisawa, Tomonari Wakabayashi, Takamasa Momose, Chemical Physics, Chemical Physics, 300, 69 - 77, May 2004 , Refereed
    Summary:This paper presents the UV and IR absorption spectroscopy of small carbon molecules of C3 observed using a high-resolution Fourier-transform spectrometer. The C3 molecules were produced by irradiation of dimers or larger clusters of acetylene with an ArF laser (λ=193 nm). Sharp UV absorption features with multiple structures were observed in the Ã1Πu←X̃1Σ g + electronic transition of C3. The sharp UV absorption demonstrates the potential of solid para-hydrogen as a matrix for high-resolution spectroscopy of UV-vis electronic transitions. © 2004 Elsevier B.V. All rights reserved.
  • Coagulation of linear carbon molecules into nanoparticles: A molecular dynamics study, Yasutaka Yamaguchi, Tomonari Wakabayashi, Chemical Physics Letters, Chemical Physics Letters, 388, 436 - 440, Apr. 2004 , Refereed
    Summary:Using molecular dynamics (MD) simulations, the coagulation of carbon chain molecules that occurs on the subliming surface of a carbon-containing rare-gas matrix is investigated. Intermolecular connections with dangling bonds enhance the sublimation of the matrix and that results in the emission of a layer of nested carbon chains into vacuum at a velocity about 100 m/s. The following conversion from carbon sp- to more stable sp2-type bonds heats up the carbon material above 3000 K. During this process, the nested carbon layer self-anneals via a graphitic mono-layer into a conjunct array of particles with a dimension about 10 nm. © 2004 Elsevier B.V. All rights reserved.
  • A mass spectroscopic study of laser vaporized graphite in H2 and D2 gases: The stability of C2nH2 (n=2-5) and C10, Yoshiyasu Kato, Tomonari Wakabayashi, Takamasa Momose, Chemical Physics Letters, Chemical Physics Letters, 386(4/6), 279 - 285, Mar. 2004 , Refereed
    Summary:Carbon clusters and hydrocarbon molecules and radicals produced by laser vaporization of graphite in a hydrogen (H2 or D2) gas expansion source were studied using 10.5 eV one-photon ionization followed by time-of-flight mass spectroscopy. By changing the delay time of the ionization pulse relative to the vaporization pulse, we found two distinctly different mass patterns: rather non-selective signals of Cn (n=6-20) and C nHm (n=3-20 and m=1-4) at shorter delay times, while selective signals of C2nH2 (n=2-5) and C10 at longer delay times. The selective formation of the carbon cluster and hydrocarbon molecules at longer delay times is attributed to the relatively inert nature of polyynes H(-C≡C-)nH (n=2-5) and monocyclic C10. The formation mechanism of these hydrocarbons and carbon clusters by laser ablation under hydrogen gas is discussed. © 2003 Elsevier B.V. All rights reserved.
  • Flashing Carbon on Cold Surfaces, Tomonari Wakabayashi, Aik Loong Ong, Dmitry Strelnikov, Wolfgang Krätschmer, Journal of Physical Chemistry B, Journal of Physical Chemistry B, 108(12), 3686 - 3690, Mar. 2004 , Refereed
    Summary:The formation of carbon particles on cold surfaces takes place when rare-gas solids containing trapped carbon vapor molecules are sublimed. This formation process is accompanied by violent effects such as flashes of light emission and splashing of luminous fragments, both observable with the naked eye. The recorded optical emission spectrum shows a continuum attributable to a blackbody radiation of ∼2500 K. We believe the violent effects are associated with exothermic reactions following the rearrangement of bonds, which leads from the metastable sp-carbon chains to the more stable sp2 form of carbon particles.
  • Generation and characterization of highly strained dibenzotetrakisdehydro[12]annulene, Yoshito Tobe, Ichiro Ohki, Motohiro Sonoda, Hiroyuki Niino, Tadatake Sato, Tomonari Wakabayashi, Journal of the American Chemical Society, Journal of the American Chemical Society, 125(19), 5614 - 5615, May 14 2003 , Refereed
    Summary:We report here the generation of tetrakisdehydro[12]annulene possessing a highly deformed triyne component from the [4.3.2]propellatriene-annelated precursor by its photolysis extruding indan and the characterization of the highly reactive annulene by chemical and spectroscopic methods. In addition to the chemical evidence for the formation of the title compound in solution such as interception as a Diels-Alder adduct, we succeeded in its characterization by UV-vis and FTIR spectra in an argon matrix at 20 K. The experimental IR spectrum agreed well with the theoretical one calculated by the DFT method. Copyright © 2003 American Chemical Society.
  • Preferential formation of neutral C10 upon laser vaporized graphite in He gas as studied by photoionization mass spectroscopy with 10.5 eV photons, Yoshiyasu Kato, Tomonari Wakabayashi, Takamasa Momose, Journal of Chemical Physics, Journal of Chemical Physics, 118, 5390 - 5394, Mar. 2003 , Refereed
    Summary:Neutral mass distribution of laser-vaporized graphite in He buffer gas was measured, extending the condition of previously considered condition to various delay times of the ionization laser pulse relative to the vaporization pulse. It was suggested that the selective anion was formed by the attachment of slow photoelectrons produced from the second UV pulse to neutral C10 formed from the preceding IR ablation pulse. The result gives the first clear evidence for such slow formation of neutral C10 in laser ablation processes.
  • Generation of infrared radiation by stimulated Raman scattering in para-hydrogen crystal at 5 K., M. Fushitani, S. Kuma, Y. Miyamoto, H. Katsuki, T. Wakabayashi, T. Momose T, A. F. Vilesov, Optics letters, Optics letters, 28(1), 37 - 39, Jan. 2003 , Refereed
    Summary:We report the preliminary results of our experiments with stimulated Raman scattering in para-hydrogen crystal aimed at developing a continuously tunable laboratory laser source of mid-infrared radiation. With laser pulses at 532 nm, a conversion efficieney for the first Stokes beam of as much as 20% in the forward direction was observed through a single-pass, 5-cm-long crystal. Generation of mid-infrared pulses at 4.5 μm was achieved by use of the output of a near-infrared pulsed laser (1.6 μm, 3 ns), and an absorption spectrum of gaseous CD4 molecules was successfully recorded. These results suggest use of the solid para-hydrogen Raman shifter as a promising light source for mid-infrared spectroscopy. © 2003 Optical Society of America.
  • Laser induced fluorescence spectra of the D1Σu+→B′1Σg+ and C1Πg→A1Πu systems of C2 solid Ne, Tomonari Wakabayashi, Aik Loong Ong, Wolfgang Krätschmer, Journal of Chemical Physics, Journal of Chemical Physics, 116, 5996 - 6001, Apr. 2002 , Refereed
    Summary:The lowest excited 1Σg +-type electronic state of C2, the B′ state, had been studied for years. Investigating microwave discharge of various hydrocarbon mixtures by a high-resolution Fourier-transform infrared (FTIR) spectrometers, the B′1Σg +→ 1πu emission of C2 in the infrared was observed. This paper discusses the observation of laser induced fluorescence (LIF) spectra of the D→B′ and C→A transitions of C2 in a solid Ne matrix.
  • [12.12]Paracyclophanedodecaynes C36H8 and C36Cl8: The smallest paracyclophynes and their transformation into the carbon cluster ion C36-, Yoshito Tobe, Ryutaro Furukawa, Motohiro Sonoda, Tomonari Wakabayashi, Angewandte Chemie - International Edition, Angewandte Chemie - International Edition, 40, 4072 - 4074, Nov. 2001 , Refereed
    Summary:The smallest [n.n.]cyclophynes known, [12.12]para-cyclophanedodecaynes C36H8 and C36Cl8 (see picture), were generated by [2=2] cycloreversion of its precursor under photolytic and mass spectrometric conditions. The stepwise loss of chlorine atoms from the anion C36 - in the gas phase.
  • Infrared Spectroscopic Study on Photolysis of Ethyl Iodide in Solid Parahydrogen: Perdeuterated Iodide System a, Norihito Sogoshi, Tomonari Wakabayashi, Takamasa Momose, Tadamasa Shida, Journal of Physical Chemistry A, Journal of Physical Chemistry A, 105, 3077 - 3086, Apr. 2001 , Refereed
    Summary:Perdeuterated ethyl iodide in solid parahydrogen is photolyzed at 4.4 K to find the formation of all deuterated ethylene, ethane, and ethyl radical and deuterium iodide. The temporal change in the intensity of the vibrational spectra upon UV irradiation reveals that the initial ethyl iodide exists in both monomeric and dimeric units. The monomeric unit is subjected to the following competitive reactions: C 2D 5I + hv → ·C 2D 5 + ·I and C 2D 5I + hv → CD 2 = CD 2 + DI. The ethylene. produced thereby is loosely complexed with the counterpart DI. The dimeric unit undergoes the following one-photonic parallel reactions I and II: (I) (C 2D 5I) 2 + hv → 2·C 2D 5 + I 2 to be followed by a gradual disproportionation, 2·C 2D 5 → CD 2 = CD 2 + C 2D 6, which proceeds by quantum tunneling of a D atom between the radicals in the experimental time scale. The possible recombination of the two radicals to butane is not observed at all. (II) (C 2D 5I) 2 + hv → CD 2 = CD 2 + C 2D 6 + I 2, which is a direct molecular process to give the same products as (I). The ethylene produced by both (I) and (II) tends to form complexes with C 2D 6 and with 12. Prolonged irradiation induces the following secondary photolysis of the three primary photoproducts: ·C 2D 5 + hv → CD 2 = CD 2 + ·D, DI + hv → ·D + ·I, and I 2 + hv → 2·I. © 2001 American Chemical Society.
  • Polyyne cyclization to form carbon cages: [16.16.16](1,3,5)cyclophanetetracosayne derivatives C60H6 and C60Cl6 as precursors to C60 fullerene, Yoshito Tobe, Nobuko Nakagawa, Jun Ya Kishi, Motohiro Sonoda, Koichiro Naemura, Tomonari Wakabayashi, Tadamasa Shida, Yohji Achiba, Tetrahedron, Tetrahedron, 57, 3629 - 3636, Apr. 2001 , Refereed
    Summary:[16.16.16](1,3,5)Cyclophanes fused by six [4.3.2]propellatriene units, which would serve as precursors to cage polyyne C60H6 and its perchloro derivative C60Cl6, respectively, were prepared. In the negative mode laser desorption mass spectra of the cyclophanes, the polyyne anions C60H6 - and C60Cl6 - were detected. Moreover, size-selective formation of C60 + as well as C60 - was also observed, indicating the possible polyyne cyclization mechanism to form the fullerene cage. © 2001 Elsevier Science Ltd.
  • Laser Induced Dissociation of Linear C6 and Reorientation of Trapping Sites in Solid Neon, T. Wakabayashi, A.-L. Ong, W Kraetschmer, AIP Conference Proceedings 590, "Nanonetwork Materials: Fullerenes, Nanotubes, and Related Systems" S. Saito et al. Ed. pp 513-516, AIP Conference Proceedings 590, "Nanonetwork Materials: Fullerenes, Nanotubes, and Related Systems" S. Saito et al. Ed. pp 513-516, 513 - 516, 2001 , Refereed
  • High-resolution infrared absorption spectroscopy of C60 molecules and clusters in parahydrogen solids, Norihito Sogoshi, Yoshiyasu Kato, Tomonari Wakabayashi, Takamasa Momose, Simon Tam, Michelle E. Derose, Mario E. Fajardo, Mario E. Fajardo, Journal of Physical Chemistry A, Journal of Physical Chemistry A, 104, 3733 - 3742, Apr. 2000 , Refereed
    Summary:We report the isolation of C 60 molecules in cryogenic parahydrogen (pH 2) solids by the rapid vapor deposition method. New theoretical simulations of rovibrational spectra for low-temperature isolated 12C 60 molecules, including boson-exchange symmetry restrictions on the rotational levels, predict a characteristic "null gap" and unequal rotational line spacings for low-J values. High-resolution IR absorption spectra of the C 60/pH 2 samples failed to show rotationally resolved features, and in fact suggest that the majority of the C 60 molecules are not rotating. However, spectra of the F 1u(1) vibrational mode near 530 cm -1 show line widths of ≈0.2 cm -1 fwhm, the sharpest IR absorption bands for C 60 reported to date. Visible absorption spectra also show sharp features in the ≈600 nm region, supporting our contention of well-isolated C 60 molecules. The C 60 molecules appear to stabilize the pH 2 solid, inhibiting the fee to hep conversion which usually occurs upon annealing of rapid vapor deposited pH 2 solids to T ≈ 5 K. We also report surprisingly strong C 60-induced IR activity in the pH 2 solid, and propose this phenomenon as a diagnostic for H 2 molecules adsorbed by carbon nanotubes. C 60/pH 2 samples grown in an enclosed cell by laser ablation of solid C 60 appear to contain predominantly (C 60) n clusters; these clusters are too small to exhibit "bulk" vibrational or electronic properties, as determined by IR and UV/visible absorption spectroscopies. Future experiments to disentangle the contributions of 13C isotopic substitution, pH 2 matrix effects, and the putative hindered rotation of C 60 molecules to the observed C 60/pH 2 IR line shapes are presently under consideration. © 2000 American Chemical Society.
  • [2 + 2] cycloreversion of [4.3.2]propella-1,3,11-trienes: An approach to cyclo[n]carbons from propellane-annelated dehydro[n]annulenes, Yoshito Tobe, Toshihiko Fujii, Hideki Matsumoto, Kunihiro Tsumuraya, Daisuke Noguchi, Nobuko Nakagawa, Motohiro Sonoda, Koichiro Naemura, Yohji Achiba, Tomonari Wakabayashi, Journal of the American Chemical Society, Journal of the American Chemical Society, 122, 1762 - 1775, Mar. 2000 , Refereed
    Summary:As a method to generate all-carbon molecules having highly reactive polyyne units from stable precursors, the [2 + 2] cycloreversion of [4.3.2]propella-1,3,11-triene derivatives was developed. To test the efficiency of this method, the reaction was first applied to simple diethynyl- and dibutadiynyl-substituted propellatrienes, which produced upon UV-irradiation linear hexatriyne and decapentayne derivatives, respectively. Next, dehydro[12]-, [16]-, [18]-, [20]-, and [24]annulene derivatives annelated by the [4.3.2]propellatriene units were prepared as precursors to the corresponding cyclo[n]carbons, a monocyclic form of carbon clusters. Laser-desorption mass spectra of the dehydroannulenes exhibited, in the negative mode, peaks due to the corresponding cyclo[n]carbon anions (n = 12, 16, 18, 20, and 24) formed by successive losses of aromatic indane fragments. Solution photolysis of the dehydro[16]annulene and dehydro[18] annulene derivatives formed reactive polyyne intermediates by [2 + 2] cycloreversion which were intercepted by furan to give the corresponding Diels-Alder adducts. The structures and spectroscopic properties of the dehydroannulenes annelated by the [4.3.2]propellatriene units, the precursors to cyclo[n]carbons, and those annelated by the oxanorbornadiene units, the products of the photolysis in furan, are discussed.
  • HPLC analysis for fullerenes up to C96 and the use of the laser furnace technique to study fullerene formation process, D. Kasuya, T. Ishigaki, T. Suganuma, Y. Ohtsuka, S. Suzuki, H. Shiromaru, Y. Achiba, T. Wakabayashi, European Physical Journal D, European Physical Journal D, 9, 355 - 358, Dec. 1999 , Refereed
    Summary:The ambient temperature dependence of the yield of fullerenes was systematically investigated toward furthering the understanding of the fullerene formation mechanism. The change in yield of fullerenes from C60 to C96 was quantitatively examined as a function of fullerene size, temperature, and position of target in the gradient of temperature. As a result, it was found that the formation of higher fullerenes requires higher furnace temperature, presumably because of the presence of higher reaction barriers prior to the accomplishment of the fullerene cage. In connection with such a thermal effect on the yield of fullerenes, we have also carried out an experiment to deduce the spatial distribution of such an endothermic reaction area in which the external heating is effectively active. Furthermore, in order to establish the presence of such a particular area for the fullerene formation, we used a high-speed video camera to directly detect emission from hot particles, which was found to be closely related to fullerene formation.
  • High resolution infrared absorption spectra of methane molecules isolated in solid parahydrogen matrices, Simon Tam, Mario E. Fajardo, Hiroyuki Katsuki, Hiromichi Hoshina, Tomonari Wakabayashi, Takamasa Momose, Journal of Chemical Physics, Journal of Chemical Physics, 111, 4191 - 4198, Dec. 1999 , Refereed
    Summary:We present high resolution (∼0.01 cm-1) infrared absorption spectra of the ν4 band of methane doped parahydrogen (CH4/pH2) solids produced by two different techniques: gas condensation in an enclosed cell at T≈8 K, and rapid vapor deposition onto a T≈2 K substrate in vacuum. The spectrum of the rapid vapor deposited solid contains a novel progression of single peaks with ≈5 cm-1 spacing, superimposed over the known spectrum of CH4 molecules trapped in sites of D3h symmetry in hexagonal close-packed (hcp) solid pH2. New theoretical calculations of the rovibrational transitions of a tetrahedral molecule in an external field of Oh symmetry permit the assignment of this new progression to CH4 molecules trapped in crystalline face centered cubic (fcc) regions of the pH2 solid. Annealing of the rapid vapor deposited samples to T≈5 K decreases the intensities of the CH4/pH2(fcc) absorptions, and results in intensity changes for parallel and perpendicularly polarized CH4/pH2(hcp) transitions. We discuss these phenomena, and the narrow (0.01-0.04 cm-1 full width at half-maximum) absorption linewidths, in terms of the microscopic structure of the pH2 hosts. © 1999 American Institute of Physics.
  • Mass spectroscopic studies of laser ablated carbon clusters as studied by photoionization with 10.5 eV photons under high vacuum, Tomonari Wakabayashi, Takamasa Momose, Tadamasa Shida, Journal of Chemical Physics, Journal of Chemical Physics, 111, 6260 - 6263, Oct. 1999 , Refereed
    Summary:Neutral carbon clusters Cn(n = 1 - 30) produced along with ionic clusters in laser vaporized graphite are studied under high vacuum by combined use of time-of-flight (TOF) mass spectroscopy and one photon ionization with a photon energy of 10.5 eV. The TOF mass distribution pattern shows intensification of the C4n+2(n≥2) clusters more clearly than the previous work by Kaizu et al. [J. Chem. Phys. 106, 9954 (1997)] who employed the same 10.5 eV photon but photoionized the neutral clusters generated by laser vaporization of graphite in helium buffer gas. The intensification is attributed to the intrinsic stability of the C4n+2(n≥2) neutral clusters, probably due to the monocyclicity. Two different line shapes of the mass spectral peak are observed for one and the same cluster size. The line shape with a tailing toward longer flight times is associated with the neutral clusters produced by relatively slow fragmentation of larger clusters (n≫30) followed by autoionization of the fragmented clusters. The other sharp line shape is associated with prompt ionization by the 10.5 eV photon. It is concluded that only the electronically excited neutral clusters are ionized for n≤5 whereas the clusters with n>5 are ionized irrespective of their electronic state. © 1999 American Institute of Physics.
  • Pyridine analogue of macrocyclic polyyne C58H4N2 as a precursor to diazafullerene C58N2, Yoshito Tobe, Hironobu Nakanishi, Motohiro Sonoda, Tomonari Wakabayashi, Yohji Achiba, Chemical Communications, Chemical Communications, 1625 - 1626, Sep. 1999 , Refereed
    Summary:(1,3,5)Pyridinophanes having [4.3.2]propellatriene units were synthesized as precursors to macrocyclic polyyne C58H4N2; diazafullerene anion C58N2 - was detected in the laser desorption mass spectrum of the pyridinophanes.
  • Infrared spectroscopic study of rovibrational states of perdeuterated methane (CD4) trapped in parahydrogen crystal, Hiromichi Hoshina, Tomonari Wakabayashi, Takamasa Momose, Tadamasa Shida, Journal of Chemical Physics, Journal of Chemical Physics, 110, 5728 - 5733, Mar. 1999 , Refereed
    Summary:The triply degenerate stretching (v3) and bending (v4) modes of CD4 in solid parahydrogen at cryogenic temperatures are studied by Fourier transform infrared spectroscopy to reveal crystal field split rovibrational structures. The observed spectra are analyzed by taking into account the crystal field potential which is constructed by the summation of the pairwise (dispersive) potential between the methane and the surrounding hydrogen molecules. By the least-squares fitting of that observed to a theoretical model the molecular constants of CD4 as well as the potential coefficient are determined as in the previous work on the CH4/p-H2 system. The potential is approximated to be proportional to the product of the polarizability of hydrogen molecule, the dipole-quadrupole polarizability of methane, and the inverse of the seventh power of the intermolecular distance between methane and hydrogen molecules. From the ratio of the potential coefficients of CH4 and CD4 the dipole-quadrupole polarizability Of CD4 is found to be 0.875 times that of CH4 under the assumption that the quantum renormalization effect is negligible. A novel temperature dependence of the line shape of the v3 and v4 modes is discovered over the range of 4.5 to 8.0 K. © 1999 American Institute of Physics.
  • Photoinduced reactions of methyl radical in solid parahydrogen, Mizuho Fushitani, Norihito Sogoshi, Tomonari Wakabayashi, Takamasa Momose, Tadamasa Shida, Journal of Chemical Physics, Journal of Chemical Physics, 109, 6346 - 6350, Dec. 1998 , Refereed
    Summary:Photolysis of methyl iodide in solid parahydrogen (p-H 2) at about 5 K is studied with ultraviolet light at 253.7 and 184.9 nm. It is found that the light at 253.7 nm produces only methyl radical, whereas the light at 184.9 nm yields both methyl radical and methane. The mechanism of the formation of the photoproducts is elucidated by analyzing the temporal behavior of the observed vibrational absorption. It is concluded that methyl radical in the ground state does not react with p-H 2 molecules appreciably but that the radical in the electronic excited state of B̃( 2A 1 ′), accessible by reabsorption of 184.9 nm photons by the radical, decomposes to a singlet methylene CH 2 ã( 1A 1) and a hydrogen atom ( 2S) and that the singlet methylene reacts with a p-H 2 molecule to give methane. © 1998 American Institute of Physics.
  • Tunneling chemical reactions in solid parahydrogen: A case of CD3+H2→CD3H+H at 5 K, Takamasa Momose, Hiromichi Hoshina, Norihito Sogoshi, Hiroyuki Katsuki, Tomonari Wakabayashi, Tadamasa Shida, Journal of Chemical Physics, Journal of Chemical Physics, 108, 7334 - 7338, May 1998 , Refereed
    Summary:Ultraviolet photolysis of CD3I in solid parahydrogen at 5 K gives CD3 radical, which decreases in a single exponential manner with a rate constant of (4.7±0.5)×10-6 s-1. Concomitantly, CD3H is formed, which is accounted for by the quantum tunneling reaction CD3+H2→CD3H+H. Under the same conditions. CH3I yields CH3 radical, but the corresponding reaction between CH3 and H2, expected to give CH4+H, does not proceed measurably at 5 K. The difference between the two systems is attributed to the difference in the zero point energy change. © 1998 American Institute of Physics.
  • [16.16.16](1,3,5)cyclophanetetracosayne (C60H6): A precursor to C60 fullerene, Yoshito Tobe, Nobuko Nakagawa, Koichiro Naemura, Tomonari Wakabayashi, Tadamasa Shida, Yohji Achiba, Journal of the American Chemical Society, Journal of the American Chemical Society, 120, 4544 - 4545, May 1998 , Refereed
  • Towards the selective formation of specific isomers of fullerenes: T- and p-dependence in the yield of various isomers of fullerenes C60-C84, Tomonari Wakabayashi, Tomonari Wakabayashi, Daisuke Kasuya, Haruo Shiromaru, Shinzo Suzuki, Koichi Kikuchi, Yohji Achiba, Zeitschrift fur Physik D-Atoms Molecules and Clusters, Zeitschrift fur Physik D-Atoms Molecules and Clusters, 40, 414 - 417, Dec. 1997 , Refereed
    Summary:Systematic fractional change in the yield of various isomers of fullerenes was revealed to strongly depend on temperature of a buffer gas. A new kinetic consideration is proposed for understanding the observed temperature- and prassure-dependence of yield of fullerenes. The model consists of three competitive reactions in consideration of plausible behaviors of a precursor, (1) decomposition into smaller fragments, (2) isomerization leading to formation of a stable fullerene cage, and (3) growth into a larger carbon cluster. Arrhenius activation energy of formation of stable fullerenes was determined to be 0.8 eV for both C60 and C70, while a higher energy of 2.0-3.3 eV for seven different isomers of higher fullerenes ranging from C76 to C84. Correlation in the activation energy is noted for a series of higher fullerenes with different sizes, sugggesting the existence of a specific precursor in their formation processes. © Springer-Verlag 1997.
  • Photoionization/fragmentation of endohedral fullerenes, S. Suzuki, Y. Kojima, H. Shiromaru, Y. Achiba, T. Wakabayashi, R. Tellgmann, E. E B Campbell, I. V. Hertel, I. V. Herte, Zeitschrift fur Physik D-Atoms Molecules and Clusters, Zeitschrift fur Physik D-Atoms Molecules and Clusters, 40, 410 - 413, Dec. 1997 , Refereed
    Summary:Photoionization/fragmentation of endohedral fullerenes was investigated by use of laser-desorption time-of-flight (LD-TOF) mass spectroscopy. The velocity distribution of the parent ion (LaC82 +) was found to be bimodal, as has previously been shown for laser desorbed C+ 60. The fragment ions have velocity distributions corresponding predominantly to the fast parent ion distribution. The LD-TOF mass spectra taken with a relatively low laser fluence were independent of the delay time of the extraction pulse, showing only a monotonically decreasing pattern of LaC2n + (as n decreased). However, with higher laser fluence, it was shown that the mass distributions drastically changed from the monotonically decreasing pattern to that of C2n + and LaC+ 2n with magic numbers. Based on these findings, a plausible photoionization/fragmentation mechanism is presented and discussed. © Springer-Verlag 1997.
  • Infrared spectroscopic study of rovibrational states of methane trapped in parahydrogen crystal, Takamasa Momose, Masaaki Miki, Tomonari Wakabayashi, Tadamasa Shida, Man Chor Chan, Man Chor Chan, Steven S. Lee, Takeshi Oka, Journal of Chemical Physics, Journal of Chemical Physics, 107, 7707 - 7716, Nov. 1997 , Refereed
    Summary:The v 3 and v 4 vibrational transitions of methane trapped in solid parahydrogen have been observed by using Fourier transform infrared and high resolution laser spectroscopy. The observed spectrum is interpreted in terms of rovibrational states of the spherical rotor which are subjected to the crystal field splitting. The v 4 band shows extremely sharp lines of a width of ∼0.003 cm -1, while the v 3 band exhibits broader lines of a width of 1 cm -1. The infrared selection rules derived from an extended group theory to take into account the field effect are consistent with the observed spectra. The intermolecular interaction and the field effect in solid parahydrogen are analyzed quantitatively. © 1997 American Institute of Physics.
  • High-resolution laser spectroscopy of methane clusters trapped in solid parahydrogen, Takamasa Momose, Hiroyuki Katsuki, Hiromichi Hoshina, Norihito Sogoshi, Tomonari Wakabayashi, Tadamasa Shida, Journal of Chemical Physics, Journal of Chemical Physics, 107, 7717 - 7720, Nov. 1997 , Refereed
    Summary:Clusters of methane are isolated in solid parahydrogen. The vibrational spectral region of the v4 fundamental of methane molecule is surveyed with a Fourier transform infrared spectrometer and a high-resolution difference-frequency infrared laser system. More than 200 sharp absorption lines are discovered whose linewidth is as narrow as 0.007 cm-1 (200 MHz). The spectrum indicates that the rovibrational levels of the clusters of small sizes are well quantized in solid parahydrogen. © 1997 American Institute of Physics.
  • Photoelectron spectroscopy of Cn- produced from laser ablated dehydroannulene derivatives having carbon ring size of n=12, 16, 18, 20, and 24, Tomonari Wakabayashi, Masamichi Kohno, Yohji Achiba, Haruo Shiromaru, Takamasa Momose, Tadamasa Shida, Koichiro Naemura, Yoshito Tobe, Journal of Chemical Physics, Journal of Chemical Physics, 107, 4783 - 4787, Oct. 1997 , Refereed
    Summary:n-Dehydroannulenes with the ring size of n= 12, 16, 18, 20, and 24 and with three to five indanyl substituents are laser ablated by 355 nm photons. The indanyl unit is lost stepwise up to the complete deletion to leave the bare annulenyl skeleton. The monoanions of these products are mass analyzed first, and then subjected to a second laser pulse of 266 nm to obtain photoelectron spectra for C- n with n=12, 16, 18, 20, and 24. The spectra are compared with those obtained by using graphite as a target of the laser ablation. The comparison of the two spectra provides useful information on the structure of neutral carbon clusters. © 1997 American Institute of Physics.
  • Preferential formation of C10- upon tandem irradiation of graphite with IR and UV laser pulses, Tomonari Wakabayashi, Takamasa Momose, Tadamasa Shida, Haruo Shiromaru, Michiaki Ohara, Yohji Achiba, Journal of Chemical Physics, Journal of Chemical Physics, 107, 1152 - 1155, Jul. 1997 , Refereed
    Summary:Infrared (IR) pulse laser ablation of graphite followed by tightly focused ultraviolet (UV) pulse laser irradiation yields C10 predominantly when the delay time between the two laser pulses is set at about 50-200 μs. The mechanism of the formation of C10 is deduced to be the attachment of slow photoelectrons to neutral C10 produced by fragmentation of hot neutral clusters of larger sizes. There is an indication that C10 and its anion have cyclic structures in contrast to the other chainlike clusters. © 1997 American Institute of Physics.
  • Infrared spectroscopic studies on photolysis of ethyl iodide in solid parahydrogen, Norihito Sogoshi, Tomonari Wakabayashi, Takamasa Momose, Tadamasa Shida, Journal of Physical Chemistry A, Journal of Physical Chemistry A, 101, 522 - 527, Jan. 1997 , Refereed
    Summary:The photolysis of ethyl iodide in solid parahydrogen leads to the formation of ethyl radical, ethylene, and ethane upon near-UV illumination at about 5 K which are characterized by vibrational spectroscopy. The mechanism of the formation of the products is elucidated consistently. Two kinds of ethylene are discriminated spectroscopically which show distinctly different temporal behaviors during illumination and standing under dark. One of them is attributed to a complex between ethylene and iodine atom. The present work demonstrates that the cage effect is insignificant in the solid parahydrogen matrix, and a variety of elementary reactions of in situ photolysis can be studied in detail in contrast to conventional rare gas matrices.
  • Infrared spectroscopic studies of carbon clusters trapped in solid parahydrogen, Masaaki Miki, Tomonari Wakabayashi, Takamasa Momose, Tadamasa Shida, The Journal of Physical Chemistry, The Journal of Physical Chemistry, 100, 12135 - 12137, Dec. 1996 , Refereed
    Summary:Small carbon clusters produced by laser ablation of a carbon rod are trapped in solid parahydrogen at 4.8 K. Infrared spectra show the presence of C3, C5, C9, and a few new clusters. The observed vibrational spectra with multiplet structures are tentatively associated with hindered rotation of the clusters. Temperature dependence of the IR spectra reveals the diffusion of C3 and C5 clusters in the crystal at around 8 K, while no diffusion of C9 and the larger clusters is noticed. Any hydrocarbons which might be produced by reactions between the carbon clusters and the substrate hydrogen molecules are not observed both during the deposition and after the thermal annealing. © 1996 American Chemical Society.
  • High resolution laser spectroscopy of solid parahydrogen at liquid helium temperatures, Takamasa Momose, Tomonari Wakabayashi, Tadamasa Shida, Czechoslovak Journal of Physics, Czechoslovak Journal of Physics, 46, 529 - 530, Dec. 1996 , Refereed
    Summary:The first overtone vibration-rotation transition of parahydrogen in a crystal containing a residual amount of rthohydrogen has been detected using high resolution laser spectroscopy. The observed spectrum shows several plittings due to the anisotropic crystal field interactions. The crystal field splitting of a single J=l orthohydrogen olecule in solid parahydrogen at liquid He temperatures is found to be 0.0070cm -1 (0.0108 K).
  • Generation of Cyclocarbons with 4n Carbon Atoms (C12, C16, and C20) by [2 + 2] Cycloreversion of Propellane-Annelated, Yoshito Tobe, Hideki Matsumoto, Koichiro Naemura, Yohji Achiba, Tomonari Wakabayashi, Angewandte Chemie (International Edition in English), Angewandte Chemie (International Edition in English), 35, 1800 - 1802, Dec. 1996 , Refereed
  • Tunable-narrow-linewidth continuous-wave mid-infrared light generation by difference-frequency mixing, Takamasa Momose, Tomonari Wakabayashi, Tadamasa Shida, Journal of the Optical Society of America B: Optical Physics, Journal of the Optical Society of America B: Optical Physics, 13, 1706 - 1712, Aug. 1996 , Refereed
    Summary:The generation of tunable narrow-band mid-infrared light by difference-frequency mixing of two kinds of continuous-wave ring-laser radiation in potassium titanyl phosphate is described. The system produces infrared powers of ∼20 μW of difference-frequency light continuously tunable from 1.05 to 2.8 μm (3500-9500 cm-1). Continuous scans over a range of 100 cm-1 with a spectral precision better than 10 MHz (0.0003 cm-1) are achieved. The high-resolution characteristics of the laser system are evaluated by use of a portion of Q2(0) overtone vibration-rotation spectrum of a solid parahydrogen crystal. © 1996 Optical Society of America.
  • Structures of carbon soot prepared by laser ablation, Sumio Iijima, Tomonari Wakabayashi, Yohji Achiba, Journal of Physical Chemistry, Journal of Physical Chemistry, 100, 5839 - 5843, Apr. 1996 , Refereed
    Summary:Two types of carbon soot, prepared by the laser ablation of graphite and carbon arc-discharge, were examined by means of electron microscopy. These carbonaceous materials are byproducts in fullerene production and thus are expected to be related structurally to fullerene molecules. It will be shown that morphologies and structure of the soot depend on carrier gas temperature during laser sputtering. Graphitic carbon is formed abundantly at room temperature, and network structures of fullerene-like cages appear dominantly at 1200 °C. Additional thermal energy during condensation of sputtered carbon is crucial in formation of various types of structures of solid carbon including fullerene molecules. © 1996 American Chemical Society.
  • A new entry into cyclo[n]carbons: [2 + 2] cycloreversion of propellane-annelated dehydroannulenes, Yoshito Tobe, Toshihiko Fujii, Hideki Matsumoto, Koichiro Naemura, Yohji Achiba, Tomonari Wakabayashi, Journal of the American Chemical Society, Journal of the American Chemical Society, 118, 2758 - 2759, Mar. 1996 , Refereed
  • C2-loss fragmentation of higher fullerenes and metallofullerenes, T. Wakabayashi, H. Shiromaru, S. Suzuki, K. Kikuchi, Y. Achiba, Surface Review and Letters, Surface Review and Letters, 3, 793 - 798, Feb. 1996 , Refereed
    Summary:Photofragmentation investigations were performed by using chromatographically isolated pure samples of higher fullerenes and metallofullerenes. Quite similar distributions of fragments were commonly observed for five different fullerenes, and this fact supports the presence of a "scrambled-cage" structure in a highly excited fullerene cage. An enhancement of the C60 and C70 signals was also observed as a result of "delayed C2-loss" fragmentation within a time scale of about 60 μs after photoexcitation. Photodissociation study of mono- and di-metallofullerenes revealed the qualitative difference in the fragment distributions between them, suggesting that LaC82 would possess an endohedral, and Sc2C84 an exohedral, form.
  • The Arrhenius Activation Energy for the Formation of Fullerenes, T. Wakabayashi, D. Kasuya, K. Kikuchi, H. Shiromaru, Y. Achiba, Proceedings of Yamada Conference XLIII on Structures and Dynamics of Clusters : May 10-13, 1995, Shimoda, Shizuoka, Japan, Tamotsu Kondow, Koji Kaya, Akira Terasaki, Proceedings of Yamada Conference XLIII on Structures and Dynamics of Clusters : May 10-13, 1995, Shimoda, Shizuoka, Japan, Tamotsu Kondow, Koji Kaya, Akira Terasaki, 535 - 539, 1996 , Refereed
  • Dynamics and Growth Mechanism of Carbon Network Systems, WAKABAYASHI Tomonari, Dissertation for Ph. D. (Natural Science), Tokyo Metropolitan University, Dissertation for Ph. D. (Natural Science), Tokyo Metropolitan University, Mar. 1995 , Refereed
  • Higher fullerenes: structure and properties, Yohji Achiba, Koichi Kikuchi, Yuichi Aihara, Tomonari Wakabayashi, Yoko Miyake, Masatsume Kainosho, Materials Research Society Symposium - Proceedings, Materials Research Society Symposium - Proceedings, 359, 3 - 9, Jan. 01 1995
    Summary:The structures of higher fullerenes are described based on 13C NMR measurements of isolated and purified samples. The most interesting aspect deduced from the present structural work on the higher fullerenes up to C 90 is that among 19 kinds of fullerenes with different sizes and isomers, 18 fullerenes commonly have at least one C 2 symmetry axis in their molecular frame. Only one exception is C 90 fullerene with a C 1 symmetry. The spectral feature of UV/Visible absorption obtained for the HPLC-isolated C 120 fullerene gives, on the other hand, a strong indication that the numbers of co-existing isomer of very large fullerenes are extremely limited, probably one or two. Considering the huge numbers of IPR-(isolated pentagon rule) satisfying isomer of C 120 (10,774), these experimental evidences may suggest the presence of very strong selectivity for the formation of stable higher fullerenes, which, in turn, is closely associated with the unknown growth process of a fullerene cage network.
  • Pressure-controlled selective isomer formation of fullerene C78, T. Wakabayashi, K. Kikuchi, S. Suzuki, H. Shiromaru, Y. Achiba, Journal of Physical Chemistry, Journal of Physical Chemistry, 98, 3090 - 3091, Dec. 1994 , Refereed
    Summary:The isomer formation of three isomers of C78 fullerene is discussed on the basis of experimental evidence revealed by pressure-controlled fullerene production. Theoretically predicted most stable isomer, C2v′-C78 has been found to be very sensitive to the graphite burning condition. The fraction of C2v′ isomer dramatically changes from zero to 50% by changing the foreign gas pressure. The present findings strongly suggest that an isomerization within the C78 carbon network such as a pyracylene rearrangement type transformation unlikely takes place. © 1994 American Chemical Society.
  • ESR detection of non-equivalent scandium trimer, Shinzo Suzuki, Yasuhiko Kojima, Yasuhiko Nakao, Tomonari Wakabayashi, Satoshi Kawata, Koichi Kikuchi, Yohji Achiba, Tatsuhisa Kato, Chemical Physics Letters, Chemical Physics Letters, 229, 512 - 516, Nov. 1994 , Refereed
    Summary:The existence of non-equivalent Sc trimer was confirmed by ESR measurements after the HPLC separation of a Sc-trimer enriched portion from carbon soot. The newly observed ESR signal consists of well-resolved hyperfine structures reproducible by a non-equivalent Se trimer structure. The observed hyperfine structures and line widths were compared with those of Sc@C82 and Sc3@C82, by which the stabilization of the non-equivalent trimer structure is discussed in terms of the hindered molecular motion of the trimer embedded in a fullerene-like carbon network. © 1994.
  • Formation and stability of small metallocarbon clusters: what is the specificity for the formation of stable metallofullerenes?, S. Suzuki, H. Torisu, H. Kubota, T. Wakabayashi, H. Shiromaru, Y. Achiba, International Journal of Mass Spectrometry and Ion Processes, International Journal of Mass Spectrometry and Ion Processes, 138, 297 - 306, Oct. 1994 , Refereed
    Summary:To clarify the specificity for the formation of stable metallofullerenes M@C82, laser vaporization time-of-flight mass spectroscopy was applied to metal-carbon composite rods, which have been used to produce extractable metallofullerenes. Most of the metal elements in the fourth row of the periodic table (K to Zn), the group IIIA elements (La, Y, and Sc), and some of the lanthanides (Ce, Sm, Eu, Gd, Tb, and Lu) were examined. The results of mass spectra taken by three different modes (positive, negative, and post-ionization) were shown and compared with the laser desorption time-of-flight mass spectra of the metallofullerene-containing crude extract for each element. It was shown that there was a strong correlation between the formation of MCn (n>4) and the formation of MC82. Also, a preliminary ab initio calculation was performed, using MC6 (M = Sc, Y, and K) as typical examples, in order to elucidate the stability and the molecular structure of MCn. It was shown that there was a difference in the binding energy and the optimized molecular structure between the cases of M = Sc, Y, and M = K. All of the above findings strongly support the view that MCn (n>4) has an important role in the formation process of M@C82. © 1994.
  • Stability of metallofullerene LaC82 on UV light irradiation, Masayoshi Ishibashi, Yasushi Tomioka, Yoshio Taniguchi, Shinzo Suzuki, Tomonari Wakabayashi, Yasuhiko Kojima, Koichi Kikuchi, Yohji Achiba, Japanese Journal of Applied Physics, Japanese Journal of Applied Physics, 33, Jan. 1994 , Refereed
    Summary:The effect of UV light on the stability of metallofullerenes containing lanthanum was investigated using laser desorption time-of-flight mass spectrometry and ESR. The decomposition rate of LaC82 in toluene solution was about 100 times faster than that of C60 Moreover, decomposition of both metallofullerene and C60 toluene solutions induced by UV light irradiation in air would mainly occur without oxide formation. In these decomposition reactions by UV light irradiation, both dissolved oxygen and photo excited toluene molecules would play important roles. © 1994 IOP Publishing Ltd.
  • Isolation and characterization of the metallofullerene LaC82, Koichi Kikuchi, Shinzo Suzuki, Yasuhiko Nakao, Nobuo Nakahara, Tomonari Wakabayashi, Haruo Shiromaru, Kazuya Saito, Isao Ikemoto, Yohji Achiba, Chemical Physics Letters, Chemical Physics Letters, 216, 67 - 71, Dec. 1993 , Refereed
    Summary:Using two-step liquid chromatographic method, the metallofullerene LaC82 has been isolated for the first time from the carbon soot. The isolated LaC82 was well identified as a stable molecule classified to a novel family of fullerene cage molecules. Comparison of the IR absorption spectra between LaC82 and C82 empty fullerene suggests an endohedral form for LaC82 with the same cage structure (C2 symmetry) previously proposed for C82. The presence of electronic absorption in the near-infrared region strongly supports the formation of an open-shell electronic structure for LaC82. © 1993.
  • Higher fullerenes; separation and molecular structures, K. Kikuchi, N. Nakahara, T. Wakabayashi, S. Suzuki, K. Saito, I. Ikemoto, Y. Achiba, Synthetic Metals, Synthetic Metals, 56, 3208 - 3213, Apr. 1993 , Refereed
    Summary:Higher Fullerenes up to C110 were isolated from carbon soot by using HPLC and the presence of magic number was ascertained. By 13C NMR measurement, molecular structures and isomers of C78, C82, and C84 were determined. There are three isomers of C78. The production ratio of C2v′, C2v, D3-C78 is about 5:2:2. The main isomer of C82 have the structure with C2 symmetry and its production yield is about 70% of total C82. There are two main isomers in C84 (D2,D2d-C84). The preliminary investigation indicated that any higher fullerenes up to C90 does not show superconductivity even when alkali-metals doped. © 1993.
  • A hypothetical growth mechanism of carbon five- and six-membered ring networks, Y. Achiba, T. Wakabayashi, T. Moriwaki, S. Suzuki, H. Shiromaru, Materials Science and Engineering B, Materials Science and Engineering B, 19, 14 - 17, Apr. 1993 , Refereed
    Summary:One of the most prominent aspects of the novel form of carbon molecules, the "fullerenes", is the characteristic features of the CC bond networks. The fullerene hollow closed cage consists of five- and six-membered rings, providing a spherical surface with no adjacent pentagons in the network (isolated pentagon rule, IPR). Here we describe a novel picture of growth of fullerenes, paying special attention to the initial stage of growth of five- and six-membered ring networks. Some important precursors associated with specific fullerenes are suggested in connection with the structure and stability of small carbon clusters. © 1993.
  • Two dimensional detection of size selected and focused neutral carbon clusters using image intensified charge coupled device (ICCD) system, S. Suzuki, T. Wakabayashi, H. Matsuura, H. Shiromaru, C. Kittaka, Y. Achiba, Zeitschrift für Physik D Atoms, Molecules and Clusters, Zeitschrift für Physik D Atoms, Molecules and Clusters, 26, 317 - 319, Mar. 1993 , Refereed
    Summary:An apparatus for getting size selected and focused neutral carbon clusters was developed. Using image intensified charge coupled device (ICCD) system, the beam profiles of C10 - and C10 were investigated. The results indicated that the beam density of C10 surpasses that of C10 - of space charge limit. © 1993 Springer-Verlag.
  • Stability, structures and a hypothetical growth mechanism of carbon 5/6 network, Y. Achiba, T. Wakabayashi, Zeitschrift für Physik D Atoms, Molecules and Clusters, Zeitschrift für Physik D Atoms, Molecules and Clusters, 26, 69 - 73, Mar. 1993 , Refereed
    Summary:A novel picture of growth of fullerene and fullerene-like structures is proposed. The ring stacking model have been studied in detail in connection with the stability, structures and growth mechanism of carbon 5-and 6-membered ring network. Combining the model with energetic considerations, the selective formation of sizes and isomers of large fullerenes has successfully been described. © 1993 Springer-Verlag.
  • Ring-stacking consideration on higher fullerene growth, T. Wakabayashi, K. Kikuchi, H. Shiromaru, S. Suzuki, Y. Achiba, Zeitschrift für Physik D Atoms, Molecules and Clusters, Zeitschrift für Physik D Atoms, Molecules and Clusters, 26, 258 - 260, Mar. 1993 , Refereed
    Summary:A hypothetical ring-stacking procedure combined with the isolated-pentagon rule(IPR) shows variety of formation pathways of many fullerene structures with a 5- and 6-membered ring carbon cage. Combining the ring-stacking procedure with energetic considerations, the numbers of possible reaction channels are dramatically reduced within the framework of the ring-stacking considerations. This, in turn, gives the results that only some specific isomers of large fullerenes are selectively produced. The resulting fullerene structures specified are surprisingly well consistent with the recent experimental results. © 1993 Springer-Verlag.
  • A selective isomer growth of fullerenes, T. Wakabayashi, H. Shiromaru, K. Kikuchi, Y. Achiba, Chemical Physics Letters, Chemical Physics Letters, 201, 470 - 474, Jan. 08 1993
    Summary:We propose a new fullerene growth model with a novel picture for selective isomer formation of higher fullerenes. The model described supposes that the fullerene intermediates, consisting of a 5- and 6-membered ring network (a cap-like structure), undergo a facile interconversion by a "pentagon migration" transformation. This energy stabilization process dramatically reduces the possible candidates of isomers with fullerene cages. The model also predicts the preferential formation of two specific isomers, D2(5)- and D2d(23)-C84 with a fraction ratio of 2:1. This conclusion is in contrast to the recent theoretical prediction that the D2(22) isomer with a different fullerene cage is more stable than the D2(5)-C84. © 1993.
  • NMR characterization of isomers of C78, C82 and C84 fullerenes, Koichi Kikuchi, Nobuo Nakahara, Tomonari Wakabayashi, Shinzo Suzuki, Haruo Shiromaru, Yoko Miyake, Kazuya Saito, Isao Ikemoto, Masatsune Kainosho, Yohji Achiba, Nature, Nature, 357, 142 - 145, Dec. 1992 , Refereed
    Summary:FOLLOWING the development of a method for bulk synthesis of C60 and other fullerenes1, the isolation of higher fullerenes ranging from C76 to C96 has been achieved using chromatographic techniques2-5. Whereas C60 and C70 have unique, high-symmetry structures6, theoretical calculations for fullerenes larger than C76 have suggested that each may exist in at least two isomeric forms7. For C84, 24 isomers have been postulated7, and for C96calculations have yielded 196 distinct isomers8. Diederich et al.9 have used liquid chromatography and 13C NMR to identify two isomers of C78, but previous experimental studies of other higher fullerenes2 have produced ambiguous results. Here we use 13C NMR to determine the structures of some principal isomers of C78, C82 and C84. We find a third isomer of C78, which was not reported in ref. 9. Characterization of the structures of these larger fullerenes should provide new understanding of the factors determining the stability of hollow carbon clusters. © 1992 Nature Publishing Group.
  • Size selection and focusing of neutral carbon clusters, S. Suzuki, T. Wakabayashi, H. Matsuura, H. Shiromaru, C. Kittaka, Y. Achiba, Chemical Physics Letters, Chemical Physics Letters, 182, 12 - 16, Jul. 1991 , Refereed
    Summary:A new method is proposed for producing a high-density beam of size-selected neutral clusters of metal or semiconductor materials. This method is based on photodetachment of negative cluster ions, size-selected and then tightly focused by two sets of einzel lens systems. This method was shown to focus the size-selected neutral cluster of C10 beyond the limit of the "space charge" effect observed in the beam profile of C- 10. © 1991.

Books etc

  • Molecular Realizations of Quantum Computing 2007 (Kinki University Series on Quantum Computing), Mikio Nakahara, e, al. E, 分担執筆, "Fullerene C60: A Possible Molecular Quantum Computer" by Tomonari Wakabayashi, World Scientific Pub Co Inc,   2009 06 , 9812838678
  • Polyynes: Synthesis, Properties, and Applications, Franco Cataldo Ed, Franco Cataldo, 分担執筆, Chapter 1. "Carbon Chain Molecules in Cryogenic Matrices" by T. Wakabayashi & W. Kraetschmer, Chapter 6. "Cyclic Polyynes: Generation, Characterization, and Reactions" by Y. Tobe & T. Wakabayashi, Chapter 9. "Polyynes C2nH2 (n=2-5) and Other Products ...", CRC Press,   2005 08 , 157444512X
  • Acetylene Chemistry: Chemistry, Biology and Material Science, F. Diederich, P. J. Stang, R. R. Tykwinski Ed, François Diederich, Peter J. Stang, Rik R. Tykwinski, 分担執筆, Chapter 9. "Carbon-Rich Compounds: Acetylene-Based Carbon Allotropes" by Y. Tobe & T. Wakabayashi, Wiley-VCH,   2005 03 , 3527307818

Conference Activities & Talks

  • 高周期元素二重結合化合物とNHCとの反応, 貞森和也, 早川直輝, 辻本祥太, 畑中美穂, 若林知成, 松尾司, 基礎有機化学討論会要旨集,   2018 09 06
  • ニュートリノ質量分光に向けた異種原子内包C60の安定性と電子物性の予測研究, 斎藤晋, 菅谷優輝, 豊田雅之, 若林知成, 金井保之, 笹尾登, 吉村太彦, 日本物理学会講演概要集(CD-ROM),   2018 03 23
  • リサイクル型フローラマン分光法を用いた4‐オクチンのジブロモ化反応のモニタリング, 松本浩一, 三谷尚也, 山口航志, 深田陽司, 遠藤あすか, 佐多良介, 畑中美穂, 森澤勇介, 柏村成史, 若林知成, 日本化学会春季年会講演予稿集(CD-ROM),   2018 03 06
  • 直鎖ポリイン分子を用いた紫外偏光フィルム, 佐多良介, 森澤勇介, 鈴木晴, 若林知成, 畑中美穂, 分子科学討論会講演プログラム&要旨(Web),   2018
  • アルカリ金属塩を含む高分子電解質における高分子の電子状態の錯形成による変化, 上野那美, 森澤勇介, 森澤勇介, 佐藤春実, 若林知成, 若林知成, 分子科学討論会講演プログラム&要旨(Web),   2018
  • 高分子電解質中で電離したハロゲン化物イオンのCT遷移の研究, 森澤勇介, 森澤勇介, 上野那美, 若林知成, 若林知成, 分子科学討論会講演プログラム&要旨(Web),   2018
  • ATR‐FUV分光法を用いた高分子電解質に関する電子状態と結晶相変化の相関, 上野那美, 佐藤春実, 若林知成, 若林知成, 森澤勇介, 森澤勇介, 日本分光学会年次講演会,   2018
  • リサイクル型フローラマン分光法を用いた4‐オクチンのジブロモ化反応のモニタリング, 三谷尚也, 山口航志, 深田陽司, 遠藤あすか, 佐多良介, 畑中美穂, 森澤勇介, 柏村成史, 松本浩一, 若林知成, 電気化学秋季大会講演要旨集(CD‐ROM),   2017 08 28
  • ネオン固体中のビスマス二量体とネオンとの相互作用による発光, 遠藤あすか, 畑中美穂, 森澤勇介, 若林知成, 日本化学会春季年会講演予稿集(CD-ROM),   2017 03 03
  • 高周期典型元素二重結合とNHCとの反応, 貞森和也, 辻本祥太, 早川直輝, 畑中美穂, 若林知成, 松尾司, 日本化学会春季年会講演予稿集(CD-ROM),   2017 03 03
  • 高分子電解質におけるATR‐FUVスペクトルの成分分解, 上野那美, 森澤勇介, 若林知成, 日本分光学会年次講演会,   2017
  • Li‐PEO高分子電解質における電子状態の分子量依存性, 上野那美, 若林知成, 森澤勇介, 分子科学討論会講演プログラム&要旨(Web),   2017
  • イリジウム二核錯体を用いる第一級アルコールの酸化反応に関する理論的研究, 瀬川実礼, 中井英隆, 若林知成, 畑中美穂, 畑中美穂, 分子科学討論会講演プログラム&要旨(Web),   2017
  • ジホスフェンとNHCとの反応, 貞森和也, 辻本祥太, 早川直輝, 畑中美穂, 若林知成, 松尾司, 有機典型元素化学討論会講演要旨集,   2016 12 08
  • 電解酸化により発生・蓄積させたチイレニウムイオンの反応性, 堀内俊, 林竜太朗, 清水章弘, 松本浩一, 宮本侑, 森澤勇介, 若林知成, 吉田潤一, 日本化学会春季年会講演予稿集(CD-ROM),   2016 03 10
  • ネオンマトリックス中に捕捉されたビスマス二量体のPLマップにおけるサテライト構造, 遠藤あすか, 畑中美穂, 森澤勇介, 若林知成, 分子科学討論会講演プログラム&要旨(Web),   2016
  • ポリエチレングリコール酸素原子へのカチオン配位による電子状態の変化, 上野那美, 若林知成, 森澤勇介, 分子科学討論会講演プログラム&要旨(Web),   2016
  • 室温レーザーアブレーションによるフラーレン生成の絶対収量, 遠藤瞳, 田口裕貴, 松本淳, 若林知成, 兒玉健, 阿知波洋次, 城丸春夫, 原子衝突学会年会講演概要集,   2015 09 28
  • プロパン中レーザー誘起ブレークダウンによるポリイン生成, 田口裕貴, 遠藤瞳, 阿部百合香, 松本淳, 若林知成, 兒玉健, 阿知波洋次, 城丸春夫, 原子衝突学会年会講演概要集,   2015 09 28
  • EUV‐FEL励起ヘリウム原子集団における多準位間超放射(II)解析, 大饗千彰, HARRIES James R, 岩山洋士, 久間晋, 宮本祐樹, 永園充, 中嶋享, 繁政英治, 若林知成, 笹尾登, 日本物理学会講演概要集(CD-ROM),   2015 03 24
  • 24aBG-12 Superradiance in multi-level He atoms excited by EUV-FEL (II) Analysis, Ohae Chiaki, HARRIES James R, Iwayama Hiroshi, Kuma Susumu, Miyamoto Yuki, Nggasono Mitsuru, Nakajima Kyo, Shigemasa Eiji, Wakabayashi Tomonari, Sasao Noboru, 日本物理学会講演概要集,   2015 03 21
  • ラマン分光法によるジアリールジスルフィドの電解酸化のその場モニタリング, 松本浩一, 島田和明, 宮本侑, 森澤勇介, 若林知成, 菅誠治, 柏村成史, 吉田潤一, 電気化学会大会講演要旨集(CD-ROM),   2015 03 09
  • Generation of polyyne and methylpolyyne molecules from toluene by intense femtosecond laser pulse irradiation, Ramadhan Ali, Wesolowski Michal, Wakabayashi Tomonari, Shiromaru Haruo, Fujino Tatsuya, Kodama Takeshi, Duley Walter, Sanderson Joseph, XXIX INTERNATIONAL CONFERENCE ON PHOTONIC, ELECTRONIC, AND ATOMIC COLLISIONS (ICPEAC2015), PTS 1-12,   2015
  • ラマン分光法によるジアリールジスルフィドの電解酸化のその場モニタリング, 松本浩一, 島田和明, 森澤勇介, 若林知成, 菅誠治, 柏村成史, 吉田潤一, 日本化学会講演予稿集,   2014 03 12
  • 三量体ビスマスの近赤外発光スペクトル, 若林知成, 和田資子, 宮本祐樹, 久間晋, 笹尾登, 川口健太郎, 分子科学討論会講演プログラム&要旨(Web),   2014
  • マクロコヒーレンス生成に向けたXe準安定状態に関する分光実験, 吉見彰洋, 笹尾登, 植竹智, 久間晋, 中嶋享, 大饗千彰, 宮本祐樹, 川口建太郎, 堤康輔, TANG J, 福見敦, 田中実, 中野逸夫, 若林知成, 吉村浩司, 吉村太彦, 日本物理学会講演概要集,   2013 08 26
  • Spectroscopy for production of macro-coherence in metastable Xe, Yoshimi A, Sasao N, Uetake S, Kuma S, Nakajima K, Ohae C, Miyamoto Y, Kawaguchi K, Tsutsumi Y, Tang J, Fukumi A, Tanaka M, Nakano I, Wakabayashi T, Yoshimura K, Yoshimura M, Meeting abstracts of the Physical Society of Japan,   2013 08 26
  • Infrared Spectra of the Polyynes and Polyyne-Iodine Complexes in Solutions, 7th International Conference on Advanced Vibrational Spectroscopy,   2013 08 , 7th International Conference on Advanced Vibrational Spectroscopy
  • Time Resolved Raman Spectroscopy of Electrochemically Generated ArS(ArSSAr)+, 7th International Conference on Advanced Vibrational Spectroscopy,   2013 08 , 7th International Conference on Advanced Vibrational Spectroscopy
  • 27pEB-7 Simultaneous measurement of superradiance from competitive transitions in atomic helium using EUV-FEL, Nakajima K, Fukumi A, Iwayama H, Kawaguchi K, Kuma S, Miyamoto Y, Nakano I, Nakashima Y, Nanjyo H, Ohae C, Sasao N, Shigemasa E, Takahashi H, Tanaka M, Tang J, Uetake S, Wakabayashi T, Yoshimi A, Yoshimura M, Meeting abstracts of the Physical Society of Japan,   2013 03 26
  • 27pEB-7 Simultaneous measurement of superradiance from competitive transitions in atomic helium using EUV-FEL, Nakajima K, Fukumi A, Iwayama H, Kawaguchi K, Kuma S, Miyamoto Y, Nakano I, Nakashima Y, Nanjyo H, Ohae C, Sasao N, Shigemasa E, Takahashi H, Tanaka M, Tang J, Uetake S, Wakabayashi T, Yoshimi A, Yoshimura M, Meeting abstracts of the Physical Society of Japan,   2013 03 26
  • 固体ネオンマトリックス中におけるビスマスクラスターの近赤外発光スペクトル, 若林知成, 富岡万貴子, 宮本祐樹, 久間晋, 川口健太郎, 日本化学会講演予稿集,   2013 03 08
  • ポリイン‐ヨウ素錯体の赤外分光, 和田資子, 森澤勇介, 若林知成, 日本化学会講演予稿集,   2013 03 08
  • 極端紫外自由電子レーザー光による励起He原子からの分岐超放射の同時測定, 中嶋享, 福見敦, 岩山洋士, 川口建太郎, 久間晋, 宮本祐樹, 中野逸夫, 中島優夢, 南條創, 大饗千彰, 笹尾登, 繁政英治, 高橋弘紀, 田中実, TANG J, 植竹智, 若林知成, 吉見彰洋, 吉村太彦, 日本物理学会講演概要集,   2013 03 05
  • ヘリウム原子の多準位系における超放射の測定, 中嶋享, 岩山洋士, 岩山洋士, 久間晋, 久間晋, 宮本祐樹, 宮本祐樹, 永園充, 中野逸夫, 笹尾登, 笹尾登, 繁政英治, 繁政英治, 富樫格, 植竹智, 若林知成, 吉見彰洋, 吉村太彦, 分子科学討論会講演プログラム&要旨(Web),   2013
  • ヘキサン中におけるポリインとヨウ素の光誘起反応の速度論的考察, 和田資子, 若林知成, 若林知成, 分子科学討論会講演プログラム&要旨(Web),   2013
  • 異方性分子固体の光学特性評価のための紫外偏光顕微鏡の試作, 若林知成, 柴田宙延, 女木健司, 瀧智司, 和田資子, 森澤勇介, 分子科学討論会講演プログラム&要旨(Web),   2013
  • ポリイン分子C10H2およびC12H2のテラヘルツ‐遠赤外振動分光, 和田資子, 若林知成, 保科宏道, 日本分光学会テラヘルツ分光部会シンポジウム講演要旨集,   2013
  • ポリイン‐ヨウ素錯体の赤外吸収スペクトル, 和田資子, 森澤勇介, 若林知成, 若林知成, 分子科学討論会講演プログラム&要旨(Web),   2012 09
  • グラファイトレーザーアブレーションで生成した安定炭素クラスターの同定, 杉本寛征, 兒玉健, 城丸春夫, 和田資子, 若林知成, 阿知波洋次, 原子衝突学会年会講演概要集,   2012 07 28
  • 固体ネオンマトリックス中におけるBi原子およびYb原子の発光スペクトル, 若林知成, 富岡万貴子, 山口琢也, 久間晋, 宮本祐樹, 中嶋享, 植竹智, 大饗千彰, 川口建太郎, 笹尾登, 田中実, TANG J, 中野逸夫, 南條創, 福見敦, 百瀬孝昌, 吉見彰洋, 吉村太彦, 日本物理学会講演概要集,   2012 03 05
  • 固体パラ水素を用いた二光子対超放射実験(II), 久間晋, 宮本祐樹, 中嶋享, 植竹智, 大饗千彰, 川口建太郎, 笹尾登, 田中実, TANG J, 中野逸夫, 南條創, 福見敦, 百瀬孝昌, 山口琢也, 湯浅一生, 吉見彰洋, 吉村太彦, 若林知成, 日本物理学会講演概要集,   2012 03 05
  • 窒素内包フラーレンN@C60の真空紫外分光, 山口琢也, 植竹智, 大饗千彰, 久間晋, 笹尾登, 田中実, 中嶋享, 中野逸夫, 南條創, 福見敦, 湯浅一生, 吉見彰洋, 吉村太彦, 若林知成, 日本物理学会講演概要集,   2012 03 05
  • 25pAD-3 Two-photon paired superradiance experiment using solid parahydrogen, Kuma S, Miyamoto Y, Nakajima K, Uetake S, Ohae C, Kawaguchi K, Sasao N, Tanaka M, Tang J, Nakano I, Nanjo H, Fukumi A, Momose T, Yamaguchi T, Yuasa K, Yoshimi A, Yoshimura M, Wakabayashi T, Meeting abstracts of the Physical Society of Japan,   2012 03 05
  • 27pAB-5 Emission Spectra of Bi and Yb Atoms in Solid Neon Matrices, Wakabayashi T, Tomioka M, Yamaguchi T, Kuma S, Miyamoto Y, Nakajima K, Uetake S, Oae C, Kawaguchi K, Sasao N, Tanaka M, Tang J, Nakano I, Nanjo H, Fukumi A, Momose T, Yoshimi A, Yoshimura M, Meeting abstracts of the Physical Society of Japan,   2012 03 05
  • 希ガス中グラファイトレーザーアブレーションによるポリインの生成, 杉本寛征, 兒玉健, 城丸春夫, 和田資子, 若林知成, 阿知波洋次, 分子科学討論会講演プログラム&要旨(Web),   2012
  • 炭素クラスターを骨格とする分子の生成を目指した高速イオン照射実験, 佐藤祐旭, 佐藤智子, 和田資子, 若林知成, WALES Benjamin, 入来仁隆, 間嶋拓也, 兒玉健, 城丸春夫, 分子科学討論会講演プログラム&要旨(Web),   2011
  • ネオンマトリクス中のビスマス原子の発光スペクトル, 富岡万貴子, 若林知成, 分子科学討論会講演プログラム&要旨(Web),   2011
  • マトリックス中に生成した励起原子集団による放射過程の研究(2), 若林知成, 富岡万貴子, 山口琢也, 中野逸夫, 吉村太彦, 笹尾登, 分子科学討論会講演プログラム&要旨(Web),   2011
  • 無極性溶媒中におけるポリイン‐ヨウ素錯体の形成, 和田資子, 若林知成, 分子科学討論会講演プログラム&要旨(Web),   2011
  • TTFカチオンを層間に含む臭化銅(I)配位高分子の電子状態とキャリア輸送特性, 大久保貴志, KIM Kyung Ho, 安間晴穂, 田中直也, 関修平, 佐伯昭紀, 若林知成, 前川雅彦, 黒田孝義, 錯体化学討論会講演要旨集,   2010 09 16
  • 固体パラ水素結晶に内包されたXe原子の電子励起状態の分光測定, 中嶋享, 福見敦, 川口建太郎, 久間晋, 宮本祐樹, 百瀬孝昌, 中野逸夫, 南條創, 大饗千彰, 笹尾登, 佐藤晴一, 谷口敬, TANG J, 若林知成, 山口琢也, 吉村太彦, 湯浅一生, 日本物理学会講演概要集,   2010 08 18
  • 14pSK-5 Spectroscopy of Electronic Excited States of Xe Atoms in Parahydrogen Crystal, Nakajima K, Fukumi A, Kawaguchi K, Kuma S, Miyamoto Y, Momose T, Nakano I, Nanjyo H, Ohae C, Sasao N, Sato S, Taniguchi T, Tang J, Wakabayashi T, Yamaguchi T, Yoshimura M, Yuasa K, Meeting abstracts of the Physical Society of Japan,   2010 08 18
  • ポリインとヨウ素分子による光反応生成物のNMR, 和田資子, 若林知成, 峯松敏江, 槐靖範, 加藤立久, 日本化学会講演予稿集,   2010 03 12
  • 窒素原子内包フラーレンN@C60の分離精製, 若林知成, 吉川愛里, 和田資子, 日本化学会講演予稿集,   2010 03 12
  • 窒素原子内包フラーレンN@C60の高純度化と分光(2, 山口琢也, 内音坊僚平, 大饗千彰, 岡林裕介, 笹尾登, 佐藤晴一, 谷口敬, 中嶋享, 中野逸夫, 南條創, 福見敦, 吉川愛里, 吉村太彦, 若林知成, 日本物理学会講演概要集,   2010 03 01
  • 窒素原子内包フラーレンN@C60の高純度化と分光(1), 若林知成, 吉川愛里, 山口琢也, 中嶋享, 笹尾登, 福見敦, 中野逸夫, 吉村太彦, 日本物理学会講演概要集,   2010 03 01
  • 23pTC-9 Purification and Spectroscopy of Atomic-Nitrogen Encapsulating Fullerene N@C_<60> (1), Wakabayashi T, Yoshikawa A, Yamaguchi T, Nakajima K, Sasao N, Fukumi A, Nakano I, Yoshimura M, Meeting abstracts of the Physical Society of Japan,   2010 03 01
  • 高強度フェムト秒レーザーを用いた溶液内反応による新奇炭素クラスターの生成, 兒玉健, 佐藤祐旭, 城丸春夫, SANDERSON Joseph, 藤野竜也, 和田資子, 若林知成, 阿知波洋次, 分子科学討論会講演プログラム&要旨(Web),   2010
  • シクロデキストリンを用いたシアノポリイン包接化合物の生成, 才川真央, 若林知成, 分子科学討論会講演プログラム&要旨(Web),   2010
  • 炭化水素分子への高強度フェムト秒レーザー照射によるポリイン分子の合成, 佐藤祐旭, 兒玉健, 城丸春夫, SANDERSON H Joseph, 藤野竜也, 和田資子, 若林知成, 阿知波洋次, 分子科学討論会講演プログラム&要旨(Web),   2010
  • ポリイン‐ヨウ素錯体の光誘起反応, 和田資子, 若林知成, 加藤立久, 分子科学討論会講演プログラム&要旨(Web),   2010
  • 固体パラ水素中の準安定Xe原子の分光研究, 久間晋, 中嶋享, 福見敦, 川口建太郎, 宮本祐樹, 百瀬孝昌, 中野逸夫, 南條創, 大饗千彰, 笹尾登, 佐藤晴一, 谷口敬, 唐健, 若林知成, 山口琢也, 吉村太彦, 湯浅一生, 分子科学討論会講演プログラム&要旨(Web),   2010
  • マトリックス中に生成した励起原子集団による放射過程の研究, 若林知成, 福見敦, 中嶋享, 大饗千彰, 山口琢也, 湯浅一生, 谷口敬, 川口健太郎, 百瀬孝昌, 中野逸夫, 南條創, 笹尾登, 吉村太彦, 分子科学討論会講演プログラム&要旨(Web),   2010
  • 液相試料へのフェムト秒レーザー照射によるポリイン,新規フラーレンの合成実験, SANDERSON J.S, 佐藤祐旭, 兒玉健, 藤野竜也, 若林知成, 城丸春夫, 阿知波洋次, 原子衝突研究協会年会講演概要集,   2009 08 20
  • マクロコヒーランス増幅機構を用いたニュートリノ質量分光(VIII)―低温マトリックスに単離・貯蔵した励起原子の分光測定―, 中嶋享, 福見敦, 中野逸夫, 南條創, 大饗千彰, 笹尾登, 佐藤晴一, 内音坊僚平, 若林知成, 山口琢也, 吉村太彦, 日本物理学会講演概要集,   2009 08 18
  • サイズ選別した直線炭化水素分子の光学特性, 若林知成, 才川真央, 和田資子, 手柴雅臣, 日本物理学会講演概要集,   2009 08 18
  • 10aSA-3 Neutrino Mass Spectroscopy Using Macro-coherence of Target Atoms (VIII) : Spectroscopy of Isolated Atoms in Low-temperature Matrices, Nakajima K, Fukumi A, Nakano I, Nanjyo H, Ohae C, Sasao N, Sato S, Uchionbo R, Wakabayashi T, Yamaguchi T, Yoshimura M, Meeting abstracts of the Physical Society of Japan,   2009 08 18
  • 窒素原子内包フラーレンN@C60の生成および濃縮, 吉川愛里, 若林知成, 分子科学討論会講演プログラム&要旨(Web),   2009
  • 単層カーボンナノチューブ生成におけるアブレーションレーザーの強度効果, 手柴雅臣, 若林知成, 分子科学討論会講演プログラム&要旨(Web),   2009
  • サイズ選別したポリイン分子の光誘起反応, 和田資子, 若林知成, 分子科学討論会講演プログラム&要旨(Web),   2009
  • 液相レーザーアブレーションにおけるポリイン分子の生成機構, 若林知成, 才川真央, 手柴雅臣, 和田資子, 分子科学討論会講演プログラム&要旨(Web),   2009
  • 液相レーザーアブレーションで生成するポリイン分子のアイソトーポマー分布の解析, 才川真央, 若林知成, 分子科学討論会講演プログラム&要旨(Web),   2009
  • シアノポリイン分子の電子吸収スペクトル, 若林知成, 和田資子, 長谷場誉樹, 峯松敏江, KRAETSCHMER Wolfgang, 化学反応討論会講演要旨集,   2008 06 01
  • グラファイトの液相アブレーションにおけるポリイン分子の生成機構, 若林知成, 長谷場誉樹, 峯松敏江, KRAETSCHMER Wolfgang, ナノ学会大会講演予稿集,   2008 05 07
  • 原子数制御したポリイン分子の光学的性質, 若林知成, 和田資子, 樫原良彦, 阿弥曜平, 長谷場誉樹, 大極光太, 橋本健朗, 日本化学会講演予稿集,   2008 03 12
  • カーボンナノチューブに捕捉されたポリイン分子のラマン散乱, 若林知成, 村上哲史, 永山寛幸, 日本物理学会講演概要集,   2008 02 29
  • 25pWB-3 Raman Scattering of Polyyne Molecules in Carbon Nanotubes, Wakabayashi T, Murakami T, Nagayama H, Meeting abstracts of the Physical Society of Japan,   2008 02 29
  • ポリイン・ヨウ素混合溶液における禁制吸収帯の強度増強効果, 和田資子, 若林知成, 長田良一, 加藤立久, 分子科学討論会講演プログラム&要旨(Web),   2008
  • 窒素原子内包フラーレンN@C60の生成とESRによる検出, 若林知成, 黒田孝義, 分子科学討論会講演プログラム&要旨(Web),   2008
  • ポリイン分子の振電相互作用に関する理論的考察, 橋本健朗, 若林知成, 大極光太, 清岡洋介, 分子科学討論会講演要旨集(CD-ROM),   2007 08 24
  • サイズ選別したポリイン分子のラマンスペクトル, 若林知成, 田畑博史, 西出大亮, 片浦弘道, 林真至, 阿知波洋次, 篠原久典, 分子科学討論会講演要旨集(CD-ROM),   2007 08 24
  • 液相レーザーアブレーションによるシアノポリイン分子の生成, 長谷場誉樹, 樫原良彦, 阿弥曜平, 和田資子, 若林知成, 分子科学討論会講演要旨集(CD-ROM),   2007 08 24
  • 一次元共役パイ電子系をもつ直線炭素分子の光学特性, 若林知成, 日本物理学会講演概要集,   2007 08 21
  • 22pYJ-4 Optical properties of linear carbon molecules with one-dimensional pi-electron systems, Wakabayashi Tomonari, Meeting abstracts of the Physical Society of Japan,   2007 08 21
  • サイズ選別したポリイン分子の溶液中における光励起および緩和過程の研究, 若林知成, 永山寛幸, 大極光太, 清岡洋介, 橋本健朗, 化学反応討論会講演要旨集,   2007 06 12
  • 単層カーボンナノチューブに安定化された直線炭素分子のラマン分光, 若林知成, 西出大亮, 永山寛幸, 片浦弘道, 阿知波洋次, 篠原久典, ナノ学会大会講演予稿集,   2007 05 21
  • ポリイン分子C2nH2(n=5‐8)のレーザー誘起発光, 永山寛幸, 若林知成, 日本化学会講演予稿集,   2007 03 12
  • 水素終端ポリイン分子:分光学的特徴と安定化, 若林知成, 西出大亮, 永山寛幸, 村上哲史, 片浦弘道, 阿知波洋次, 篠原久典, 日本化学会講演予稿集,   2007 03 12
  • ポリイン分子C10H2のNMRおよびラマンスペクトル, 若林知成, 永山寛幸, 土井達也, 田畑博史, 林真至, 梅田塁, 戸部義人, 分子構造総合討論会講演要旨集(CD-ROM),   2006 08 24
  • ネオン固体中における直鎖炭素クラスターC6の可視光照射効果, 奥田晃史, 若林知成, 分子構造総合討論会講演要旨集(CD-ROM),   2006 08 24
  • 水素終端型直鎖炭素クラスターの精製およびキャラクタリゼーション, 若林知成, 土井達也, 梅田塁, 園田素啓, 戸部義人, ナノ学会大会講演予稿集,   2006 05 19
  • ポリイン分子(CnH2)のラマン分光と表面増強ラマン(SERS)分光, 田畑博史, 土井達也, 若林知成, 林真至, ナノ学会大会講演予稿集,   2006 05 19
  • 直鎖ポリインを内包したカーボンナノチューブの合成と評価, 西出大亮, 若林知成, 土肥博史, 北浦良, 菅井俊樹, 篠原久典, ナノ学会大会講演予稿集,   2006 05 19
  • 固体ネオンマトリックス中における直鎖炭素クラスターの可視光照射効果, 奥田晃史, 若林知成, ナノ学会大会講演予稿集,   2006 05 19
  • 30pTE-5 Resonance Raman spectra of linear polyyne molecules, Wakabayashi Tomonari, Okuda Koji, Doi Tatsuya, Meeting abstracts of the Physical Society of Japan,   2006 03 04
  • Molecular dynamics simulation on the carbon cluster formation process by laser irradiation, 宮本圭一, 山口康隆, 稲葉武彦, 若林知成, 日本機械学会熱工学コンファレンス講演論文集,   2005 11 02
  • C123 Molecular dynamics simulation on the carbon cluster formation process by laser irradiation, 宮本 圭一, 山口 康隆, 稲葉 武彦, 若林 知成, Procee[d]ings of Thermal Engineering Conference,   2005 11 02
    Summary:The emission process of high temperature, high density carbon atoms into cold buffer gas is simulated by using the molecular dynamics method in order to investigate the formation process of carbon clusters under laser irradiation. The slag-like carbon material are initially decomposed from C_n (n>20) mostly into very small clusters C_n (n=2〜4) atoms, and the re-growth growth process of these small cluster into middle sized clusters of C_n (n=6〜10) follows afterwards. In the case of high pressure buffer gas condition, the second process is enhanced due to the trapping effect.
  • 光励起スペクトル相関法による赤外吸収線の同定, 奥田晃史, 若林知成, 分子構造総合討論会講演要旨集(CD-ROM),   2005 09 01
  • ポリイン分子H(‐C≡C‐)nH(n=4‐8)の生成および分離, 土井達也, 若林知成, 分子構造総合討論会講演要旨集(CD-ROM),   2005 09 01
  • 低温表面における炭素クラスターの反応と微粒子生成, 若林知成, 奥田晃史, 山口康隆, ナノ学会大会講演予稿集,   2005 05 08
  • Generation of Highly Reactive Polyynes and their Selective Transformation into Particular Carbon Clusters, Umeda Rui, Tobe Yoshito, Sonoda Motohiro, Wakabayashi Tomonari, Abstracts of Symposium on Physical Organic Chemistry,   2004 09 23
    Summary:当研究室で開発した、高反応性ポリインを発生させる方法を用いてサイズ選択的なカーボンクラスターの生成に関して研究を行った。すなわち、C36およびC78を取り上げ、まずそれぞれ対応する前駆体を合成した。それらのレーザーデソープションマススペクトルにおいて、高反応性ポリインが生成し、さらにそれからの環化異性化によりサイズ選択的に対応するカーボンクラスターへの変換が起こることを見い出した。生成したカーボンクラスターの構造についても検討した。
  • MD Simulations on the Exothermic Coagulation of Linear Carbon Molecules, 山口康隆, 若林知成, 日本伝熱シンポジウム講演論文集,   2004 05 26
  • マトリックス昇華法によるカルビンリッチな炭素薄膜生成, 若林知成, 山口康隆, 加藤将樹, 鈴木信三, 阿知波洋次, KRAETSCHMER W, ナノ学会大会講演予稿集,   2004 05 09
  • Coagulation of Carbon Chain Molecules on Cold Surfaces, 若林知成, 山口康隆, 加藤将樹, 鈴木信三, 百瀬孝昌, 吉村一良, 阿知波洋次, KRAETSCHMER W, 日本化学会講演予稿集,   2004 03 11
  • 高反応性ジベンゾデヒドロ[12]および[14]アヌレンの生成と同定, 大木一朗, 江田健, 園田素啓, 新納弘之, 佐藤正健, 若林知成, 戸部義人, 構造有機化学討論会講演予稿集,   2003 10 03
  • 鎖状炭素分子の発熱的凝集過程に関する分子動力学シミュレーション, 山口康隆, 若林知成, 分子構造総合討論会講演要旨集(CD-ROM),   2003 09 20
  • 炭素分子のマトリックス分離分光2―低温固体表面における発熱的凝集過程―, 若林知成, 山口康隆, 加藤将樹, 百瀬孝昌, 鈴木信三, 阿知波洋次, 片浦弘道, ウォルフガング クレッチマー, 分子構造総合討論会講演要旨集(CD-ROM),   2003 09 20
  • 固体パラ水素中のC3の分光学的研究, 保科宏道, 加藤吉康, 森沢勇介, 若林知成, 百瀬孝昌, 分子構造総合討論会講演要旨集(CD-ROM),   2003 09 20
  • 低温マトリックス昇華法による炭素分子からの微粒子生成, 若林知成, 加藤将樹, 百瀬孝昌, 片浦弘道, 鈴木信三, 阿知波洋次, 戸部義人, KRAETSCHMER W, ナノ学会大会講演予稿集,   2003 05 29
  • 炭素分子のマトリックス分離分光, 若林知成, 分子構造総合討論会講演要旨集,   2002 10 01
  • 炭素分子のマトリックス分離分光 直鎖C6のLIFおよびC2の化学発光, 若林知成, 加藤吉康, 百瀬孝昌, KRAETSCHMER W, 分子構造総合討論会講演要旨集,   2002 10 01
  • 炭素分子の凝集過程におけるフラッシュ現象, 若林知成, 玉城孝憲, 鈴木信三, KRAETSCHMER W, 化学反応討論会講演要旨集,   2002 06 18
  • High-resolution electronic spectra of molecules embedded in superfluid helium droplets., 久間晋, 中嶋直樹, 若林知成, 百瀬孝昌, LEHNIG R, VILESOV A F, 分子構造総合討論会講演要旨集,   2001 09 24
  • Dependence of the size- and geometric isomer-distributions of carbon clusters on the fluence of ablation laser pulses., 加藤吉康, 津田基嗣, 若林知成, 百瀬孝昌, 分子構造総合討論会講演要旨集,   2000 09 27
  • Excited Electronic States of Monocyclic Carbon Clusters., 若林知成, 加藤吉康, 森田明弘, 百瀬孝昌, 志田忠正, 分子構造総合討論会講演要旨集,   1999 09 27
  • Photoionization of Carbon Clusters Using a Vacuum-UV Laser., 若林知成, 百瀬孝昌, 志田忠正, 化学反応討論会講演要旨集,   1999 05 26
  • 固体パラ水素中におけるヨウ素原子の高分解能分光, 伏谷瑞穂, 曽越宣仁, 若林知成, 百瀬孝昌, 志田忠正, 分子構造総合討論会講演要旨集,   1998 09
  • レーザー蒸発法を用いたフラーレン生成機構の研究 生成反応場に関する考察, 糟屋大介, 石垣敏信, 鈴木信三, 城丸春夫, 阿知波洋次, 若林知成, 分子構造総合討論会講演要旨集,   1998 09
  • 個体パラ水素中に捕捉した炭素クラスターの構造と振動・回転・電子状態の研究, 加藤吉康, 曽越宣仁, 若林知成, 百瀬孝昌, 志田忠正, 分子構造総合討論会講演要旨集,   1998 09
  • 固体パラ水素中の重水素置換メタンの赤外分光, 保科宏道, 百瀬孝昌, 若林知成, 志田忠正, 分子構造総合討論会講演要旨集,   1998 09
  • 固体パラ水素中のアンモニア分子の高分解能分光, 曽越宣仁, 若林知成, 百瀬孝昌, 志田忠正, 分子構造総合討論会講演要旨集,   1998 09
  • Photoinduced Reactions of Methyl Radical in Solid Parahydrogen., 伏谷瑞穂, 曽越宣仁, 若林知成, 百瀬孝昌, 志田忠正, 化学反応討論会講演要旨集,   1998 05
  • Electronic Spectra of Cyclic Carbon Clusters., 若林知成, 加藤吉康, 百瀬孝昌, 志田忠正, 化学反応討論会講演要旨集,   1998 05
  • Ultraviolet Absorption Spectroscopy of Neutral Carbon Clusters Trapped in Rare Gas Matrices., 加藤吉康, 若林知成, 百瀬孝昌, 志田忠正, 日本化学会講演予稿集,   1998 03
  • Correlation between fullerene formation condition and ringed cluster formation condition., 若林知成, 加藤吉康, 百瀬孝昌, 志田忠正, 糟屋大介, 鈴木信三, 阿知波洋次, フラーレン総合シンポジウム講演要旨集,   1998 01
  • Formation of cage-type polyyne C60H6., 戸部義人, 中川寿子, 苗村浩一郎, 若林知成, 志田忠正, 阿知波洋次, フラーレン総合シンポジウム講演要旨集,   1998 01
  • Light absorption measurement of carbon cluster in vacuum ultraviolet and ultraviolet visible regions., 加藤吉康, 若林知成, 百瀬孝昌, 志田忠正, フラーレン総合シンポジウム講演要旨集,   1998 01
  • Tunneling reaction of CD3 radical with hydrogen molecule in solid parahydrogen., 保科宏道, 百瀬孝昌, 若林知成, 志田忠正, 分子構造総合討論会講演要旨集,   1997 10
  • Spectroscopy of Molecules Trapped in Quantum Crystal., 百瀬孝昌, 若林知成, 志田忠正, 分子構造総合討論会講演要旨集,   1997 10
  • Hirgh resolution laser specroscopy of methane clusters trapped in solid parahydrogen., 伏谷瑞穂, 香月浩之, 保科宏道, 若林知成, 百瀬孝昌, 志田忠正, 分子構造総合討論会講演要旨集,   1997 10
  • Matrix Isolation Spectroscopy of Carbon Clusters Cn Trapped in Rare Gas Matrices at 7K., 若林知成, 加藤吉康, 伏谷瑞穂, 百瀬孝昌, 志田忠正, 分子構造総合討論会講演要旨集,   1997 10
  • Photolysis of Ethyl Iodide in Solid Parahydrogen., 曽越宣仁, 若林知成, 百瀬孝昌, 志田忠正, 分子構造総合討論会講演要旨集,   1997 10
  • A study of fullerene formation process with laser vaporization method. (2). Circumstance of formation-reaction space and fullerene yield, isomer formation ratio., 糟屋大介, 菅沼友尚, 石垣敏信, 鈴木信三, 片浦弘道, 城丸春夫, 菊地耕一, 阿知波洋次, 若林知成, 分子構造総合討論会講演要旨集,   1997 10
  • Vibrational spectroscopy of SF6 in solid parahydrogen., 香月浩之, 若林知成, 百瀬孝昌, 志田忠正, 分子構造総合討論会講演要旨集,   1997 10
  • Research on a fullerene generating process using laser vaporization method., 糟屋大介, 菅沼友尚, 石垣敏信, 鈴木信三, 片浦弘道, 城丸春夫, 菊地耕一, 阿知波洋次, 若林知成, フラーレン総合シンポジウム講演要旨集,   1997 07
  • Preferential Formation of C10-upon Double-Pulse Laser Ablation of Graphite., 若林知成, 百瀬孝昌, 城丸春夫, 阿知波洋次, 志田忠正, 化学反応討論会講演要旨集,   1997 05
  • 29p-G-2 Specific Formation of C_10 by Dual Irradiation of Graphite with IR and UV Laser Pulses, Wakabayashi Tomonari, Achiba Yohji, Shiromaru Haruo, Momose Takamasa, Shida Tadamasa, Meeting abstracts of the Physical Society of Japan,   1997 03 17
  • 29p-YA-10 Laser Spectroscopy of Vibroons in Quantum Crystal, Momose Takamasa, Wakabayashi Tomonari, Shida Tadamasa, Meeting abstracts of the Physical Society of Japan,   1997 03 17
  • Study of fullerene formation condition with laser vaporization method. (1). Pressure dependence of fullerene formation region., 糟屋大介, 菅沼友尚, 鈴木信三, 片浦弘道, 城丸春夫, 菊地耕一, 阿知波洋次, 若林知成, 日本化学会講演予稿集,   1997 03
  • Laser Spectroscopy of Vibrons in Quantum Crystal., 百瀬孝昌, 若林知成, 志田忠正, 日本物理学会講演概要集(年会),   1997 03
  • Photoelectron spectroscopy of cyclic carbon cluster., 若林知成, 河野正道, 城丸春夫, 阿知波洋次, 百瀬孝昌, 志田忠正, 苗村浩一郎, 戸部義人, フラーレン総合シンポジウム講演要旨集,   1997 01
  • Examination on the formation condition of metal inclusion fullerene. (3)., 菅沼友尚, 糟屋大介, 鈴木信三, 阿知波洋次, 木村啓, 真庭豊, 片浦弘道, 若林知成, フラーレン総合シンポジウム講演要旨集,   1997 01
  • Research on a carbon cluster formation process by new laser vaporization mass spectrometry., 若林知成, 百瀬孝昌, 志田忠正, 城丸春夫, 小原通昭, 阿知波洋次, フラーレン総合シンポジウム講演要旨集,   1997 01
  • Photoelectron Spectroscopic Studies of Monocyclic Carbon Clusters Produced by Laser Ablation of Organic Compounds., 若林知成, 河野正道, 阿知波洋次, 城丸春夫, 百瀬孝昌, 志田忠正, 苗村浩一郎, 戸部義人, 分子構造総合討論会講演要旨集,   1996 10
  • New Matrix Isolation Spectroscopy using Solid Parahydrogen. (2). Photolysis of Acetaldehyde., 曽越宣仁, 内田幹夫, 若林知成, 百瀬孝昌, 志田忠正, 分子構造総合討論会講演要旨集,   1996 10
  • New Matrix Isolation Spectroscopy using Solid Parahydrogen. (3). UV Photolysis of Methyl Iodide and Perdeuterated Methyl Iodide., 内田幹夫, 曽越宣仁, 若林知成, 百瀬孝昌, 志田忠正, 分子構造総合討論会講演要旨集,   1996 10
  • High resolution spectroscopy of solid hydrogen using a near-infrared difference frequency laser., 百瀬孝昌, 中村敏浩, 若林知成, 志田忠正, 分子構造総合討論会講演要旨集,   1996 10
  • A study of higher fullerene selective formation with DC arc discharge method., 糟屋大介, 鈴木信三, 城丸春夫, 菊地耕一, 阿知波洋次, 若林知成, 分子構造総合討論会講演要旨集,   1996 10
  • New Matrix Isolation Spectroscopy using Solid Parahydrogen. (1). UV Photolysis of Ethyl iodide., 曽越宣仁, 内田幹夫, 若林知成, 百瀬孝昌, 志田忠正, 分子構造総合討論会講演要旨集,   1996 10
  • Photoionization/fragmentation of endohedral fullerenes., 鈴木信三, 小島康彦, 城丸春夫, 若林知成, 阿知波洋次, TELLGMANN R, CAMPBELL E E B, HERTEL I V, 化学反応討論会講演要旨集,   1996 05
  • 1a-YJ-1 Spectroscopy of Polyatomic Molecules in Liquid Hydrogen, Wakabayashi Tomonari, Yoshizawa Isamu, Momose Takamasa, Shida Tadamasa, Abstracts of the meeting of the Physical Society of Japan. Annual meeting,   1996 03 15
  • 1a-YJ-2 High Resolution Infrared Spectroscopy of Solid Parahydrogen, Momose Takamasa, Nakamura Toshihiro, Wakabayashi Tomonari, Shida Tadamasa, Dickson Robert M, Oka Takeshi, Abstracts of the meeting of the Physical Society of Japan. Annual meeting,   1996 03 15
  • Spectroscopy of Polyatomic Molecules in Liquid Hydrogen., 若林知成, 吉沢勇, 百瀬孝昌, 志田忠正, 日本物理学会講演概要集(年会),   1996 03
  • Matrix Isolation Spectroscopy in Solid Parahydrogen. (2). Photochemistry of Methyl Iodide., 内田幹夫, 曽越宣仁, 三木正章, 若林知成, 百瀬孝昌, 志田忠正, 日本化学会講演予稿集,   1996 03
  • Matrix Isolation Spectroscopy in Solid Parahydrogen. (4). Photochemistry of Ethyl Iodide., 曽越宣仁, 内田幹夫, 三木正章, 若林知成, 百瀬孝昌, 志田忠正, 日本化学会講演予稿集,   1996 03
  • Study on Formation of Metallofullerenes with Laser Vaporization Technique., 桜井斎, 鈴木信三, 小島康彦, 糟屋大介, 若林知成, 城丸春夫, 阿知波洋次, 日本化学会講演予稿集,   1996 03
  • High Resolution Infrared Spectroscopy of Solid Parahydrogen., 百瀬孝昌, 中村敏浩, 若林知成, 志田忠正, DICKSON R M, 岡武史, 日本物理学会講演概要集(年会),   1996 03
  • Matrix Isolation Spectroscopy in Solid Parahydrogen. (3). Infrared Spectroscopy of Carbon Clusters., 三木正章, 若林知成, 百瀬孝昌, 志田忠正, 日本化学会講演予稿集,   1996 03
  • Matrix Isolation Spectroscopy in Solid Parahydrogen. (1). Infrared Spectroscopic Study of Deuterated Methane., 内田幹夫, 三木正章, 曽越宣仁, 若林知成, 百瀬孝昌, 志田忠正, 日本化学会講演予稿集,   1996 03
  • Infrared measurement of carbon cluster formed in solid hydrogen., 三木正章, 若林知成, 百瀬孝昌, 志田忠正, フラーレン総合シンポジウム講演要旨集,   1996 01
  • Photoelectron spectroscopy of carbon formed in direct laser vaporization in vacuum., 若林知成, 百瀬孝昌, 志田忠正, 城丸春夫, 阿知波洋次, フラーレン総合シンポジウム講演要旨集,   1996 01
  • Role of rare gas in tfullerene formation. (3 ) . Study of temperature dependency., 糟屋大介, 鈴木信三, 城丸春夫, 菊地耕一, 阿知波洋次, 若林知成, フラーレン総合シンポジウム講演要旨集,   1996 01
  • Synthesis of various cyclic carbon cluster precursor and formation of cluster in mass spectrometry., 戸部義人, 松本英樹, 苗村浩一郎, 阿知波洋次, 若林知成, フラーレン総合シンポジウム講演要旨集,   1996 01
  • Photodissociation of fullerenes., 小島康彦, 鈴木信三, 城丸春夫, 菊地耕一, 阿知波洋次, 若林知成, 分子構造総合討論会講演要旨集,   1995 09
  • The Effect of rare gas on the fullerene formation., 糟屋大介, 鈴木信三, 城丸春夫, 菊地耕一, 阿知波洋次, 若林知成, 分子構造総合討論会講演要旨集,   1995 09
  • Role of rare gas in fullerene generation. (1 ) Research on pressure dependence., 糟屋大介, 鈴木信三, 城丸春夫, 菊地耕一, 阿知波洋次, 若林知成, フラーレン総合シンポジウム講演要旨集,   1995 07
  • PES study on the carbon clusters produced by the direct laser vaporization method., 若林知成, 城丸春夫, 阿知波洋次, 化学反応討論会講演要旨集,   1995 05
  • The investigation on the formation of metallofullerene with laser vaporization technique., 桜井斎, 糟屋大介, 若林知成, 鈴木信三, 城丸春夫, 阿知波洋次, 化学反応討論会講演要旨集,   1995 05
  • 炭素クラスターの構造とフラグメンテーション, 小島康彦, 若林知成, 鈴木信三, 城丸春夫, 阿知波洋次, 質量分析連合討論会講演要旨集,   1995 04
  • Cage Structures and Growth Mechanism of Fullerenes. Balls to Tubes., 若林知成, 糟屋大介, 相原雄一, 菊地耕一, 城丸春夫, 阿知波洋次, 日本化学会講演予稿集,   1995 03
  • Toward the Synthesis of Monocyclic Carbon Clusters: Preparation and Decomposition of Propellane Type Cyclo 18 carbon Precursor., 戸部義人, 藤井俊彦, 松本英樹, 苗村浩一郎, 阿知波洋次, 若林知成, 日本化学会講演予稿集,   1995 03
  • Isolation and Photodissociation of ScO2C86., 小島康彦, 鈴木信三, 若林知成, 中尾裕彦, 菊地耕一, 阿知波洋次, 日本化学会講演予稿集,   1995 03
  • Molecular Structures of Higher Fullerenes., 菊地耕一, 相原雄一, 若林知成, 池本勲, 三宅洋子, 甲斐荘正恒, 阿知波洋次, 日本化学会講演予稿集,   1995 03
  • C86,C88,C90の分子構造, 相原雄一, 若林知成, 菊地耕一, 池本勲, 三宅洋子, 甲斐荘正恒, 阿知波洋次, フラーレン総合シンポジウム講演要旨集,   1995 01
  • モノサイクリックカーボンクラスター(C18)の発生, 戸部義人, 藤井俊彦, 松本英樹, 苗村浩一郎, 阿知波洋次, 若林知成, フラーレン総合シンポジウム講演要旨集,   1995 01
  • Scを含むフラーレン類の光解離, 小島康彦, 鈴木信三, 若林知成, 中尾裕彦, 菊地耕一, 阿知波洋次, フラーレン総合シンポジウム講演要旨集,   1995 01
  • フラーレン成長機構 (5) フラーレン類の新しい分類法, 若林知成, 糟屋大介, 菊地耕一, 城丸春夫, 阿知波洋次, フラーレン総合シンポジウム講演要旨集,   1995 01
  • 非等価Sc3を含むフラーレン様物質の分離と同定, 小島康彦, 鈴木信三, 若林知成, 中尾裕彦, 菊地耕一, 川田知, 阿知波洋次, 加藤立久, 分子構造総合討論会講演要旨集,   1994 09
  • フラーレン構造異性体の選択的生成と成長機構, 若林知成, 城丸春夫, 菊地耕一, 阿知波洋次, 分子構造総合討論会講演要旨集,   1994 09
  • フラーレン様ネットワークで安定化された金属クラスターのESR (その2), 小島康彦, 鈴木信三, 中尾裕彦, 若林知成, 川田知, 菊地耕一, 阿知波洋次, 加藤立久, C60総合シンポジウム講演要旨集,   1994 08
  • Temperature Dependence of Production Yields of Higher Fullerene Isomers., 若林知成, 沢田和広, 城丸春夫, 菊池耕一, 鈴木信三, 阿知波洋次, 化学反応討論会講演要旨集,   1994 05
  • 28p-YK-14 Structures and Properties of Mono -and Di-metallofullerenes, Kikuchi K, Nakao Y, Nomura M, Wakabayashi T, Suzuki S, Saito K, Ikemoto I, Achiba Y, Abstracts of the meeting of the Physical Society of Japan. Annual meeting,   1994 03 16
  • Structures and Properties of Mono- and Di-metallofullerences., 菊地耕一, 中尾裕彦, 野村昌治, 若林知成, 鈴木信三, 斎藤一弥, 池本勲, 阿知波洋次, 日本物理学会講演概要集(年会),   1994 03
  • The ESR spectrum of metal cluster stabilized in the fullerene-like carbon network., 鈴木信三, 小島康彦, 中尾裕彦, 若林知成, 川田知, 菊地耕一, 加藤立久, 阿知波洋次, 日本化学会講演予稿集,   1994 03
  • Study of collision induced electron detachment of negative carbon cluster ions combined with single acceleration method., 川田義浩, 城丸春夫, 森脇太郎, 若林知成, 阿知波洋次, 応用物理学関係連合講演会講演予稿集,   1994 03
  • 原子数100を越える高次フラーレンの分離と性質, 菊地耕一, 相原雄一, 中尾裕彦, 若林知成, 鈴木信三, 阿知波洋次, C60総合シンポジウム講演要旨集,   1994 01
  • 金属内包フラーレンPr@C82の作製とその光反応性, 石橋雅義, 冨岡安, 谷口彬雄, 若林知成, 鈴木信三, 菊地耕一, 阿知波洋次, C60総合シンポジウム講演要旨集,   1994 01
  • 単核,複核金属フラーレン類の単離と分子物性, 中尾裕彦, 菊地耕一, 若林知成, 鈴木信三, 斎藤一弥, 阿知波洋次, 池本勲, C60総合シンポジウム講演要旨集,   1994 01
  • フラーレン成長機構 (4) 希ガス温度と圧力を制御したフラーレンの生成, 若林知成, 沢田和広, 城丸春夫, 菊地耕一, 阿知波洋次, C60総合シンポジウム講演要旨集,   1994 01
  • フラーレン様ネットワークで安定化された金属クラスターのESR, 鈴木信三, 小島康彦, 中尾裕彦, 若林知成, 川田知, 菊地耕一, 加藤立久, 阿知波洋次, C60総合シンポジウム講演要旨集,   1994 01
  • 炭素クラスター(n=3‐120)の構造と成長, 阿知波洋次, 森脇太郎, 若林知成, 菊地耕一, 鈴木信三, 城丸春夫, 分子構造総合討論会講演要旨集,   1993 10
  • LaC82とLa2C100の吸収スペクトル, 中尾裕彦, 菊池耕一, 若林知成, 鈴木信三, 斎藤一弥, 阿知波洋次, 池本勲, 分子構造総合討論会講演要旨集,   1993 10
  • 炭素クラスターの光解離ダイナミクス, 若林知成, 城丸春夫, 菊地耕一, 阿知波洋次, 分子構造総合討論会講演要旨集,   1993 10
  • 13a-PS-58 Photodissociation and Growth Mechanism of Carbon Clusters, Wakabayashi T, Shiromaur H, Kikuchi K, Achiba Y, Abstracts of the meeting of the Physical Society of Japan. Sectional meeting,   1993 09 20
  • Photodissociation and Growth Mechanism of Carbon Clusters., 若林知成, 城丸春夫, 菊地耕一, 阿知波洋次, 日本物理学会講演概要集(分科会),   1993 09
  • 分子性炭化ランタンの単離とその性質, 中尾裕彦, 若林知成, 菊地耕一, 鈴木信三, 斎藤一弥, 阿知波洋次, 池本勲, C60総合シンポジウム講演要旨集,   1993 08
  • 金属フラーレンの光解離, 若林知成, 城丸春夫, 鈴木信三, 菊地耕一, 阿知波洋次, C60総合シンポジウム講演要旨集,   1993 08
  • 金属内包フラーレンLaC82の光解離, 若林知成, 城丸春夫, 鈴木信三, 菊地耕一, 阿知波洋次, 化学反応討論会講演要旨集,   1993 06
  • 金属・炭素二成分クラスターMCnと金属内包フラーレンの相関, 鳥巣裕之, 若林知成, 鈴木信三, 城丸春夫, 阿知波洋次, 化学反応討論会講演要旨集,   1993 06
  • 金属原子はどのように炭素カゴ内にトラップされるか, 阿知波洋次, 若林知成, 鳥巣裕之, 窪田裕之, 化学反応討論会講演要旨集,   1993 06
  • LaC82の単離とその性質, 菊地耕一, 中原靖夫, 若林知成, 鈴木信三, 城丸春夫, 斎藤一弥, 池本勲, 阿知波洋次, 日本化学会講演予稿集,   1993 03
  • 高次フラーレンの成長とHe圧力の関係, 若林知成, 菊地耕一, 中原靖夫, 阿知波洋次, 日本化学会講演予稿集,   1993 03
  • 27p-PSA-37 Size-Selected and High-Density Neutral Cluster Beam of Semiconductor Materials (3), Wakabayashi T, Shiromaru H, Suzuki S, Achiba Y, 秋の分科会講演予稿集,   1992 09 14
  • Size-Selected and High-Density Neutral Cluster Beam of Semiconductor Materials. (3)., 若林知成, 城丸春夫, 鈴木信三, 阿知波洋次, 日本物理学会講演概要集(分科会),   1992 09
  • フラーレン成長機構, 若林知成, 菊地耕一, 鈴木信三, 城丸春夫, 阿知波洋次, 分子構造総合討論会講演要旨集,   1992 09
  • フラーレン成長機構, 若林知成, 菊地耕一, 鈴木信三, 城丸春夫, 森脇太郎, 阿知波洋次, 化学反応討論会講演要旨集,   1992 06
  • 29p-PS-2 Size-Selected and High-Density Neutral Cluster Beam of Semiconductor Materials (2), Wakabayashi T, Suzuki S, Shiromaru H, Achiba Y, 年会講演予稿集,   1992 03 12
  • フラーレンの成長機構, 若林知成, 中原靖夫, 菊地耕一, 城丸春夫, 鈴木信三, 甲斐荘正恒, 池本勲, 阿知波洋次, 日本化学会講演予稿集,   1992 03
  • Size-Selected and High-Density Neutral Cluster Beam of Semiconductor Materials. (2)., 若林知成, 鈴木信三, 城丸春夫, 阿知波洋次, 日本物理学会講演概要集(年会),   1992 03
  • 巨大フラーレン類の分子構造, 菊地耕一, 若林知成, 中原靖夫, 本田昌洋, 鈴木信三, 城丸春夫, 三宅洋子, 斎藤一弥, 阿知波洋次, 日本化学会講演予稿集,   1992 03
  • 29p-BPS-9 Size-Selected and High-Density Neutral Cluster Beam of Semiconductor Materials, Wakabayashi T, Matsuura H, Suzuki S, Shiromaru H, Achiba Y, 年会講演予稿集,   1991 09 12
  • Size-Selected and High-Density Neutral Cluster Beam of Semiconductor Materials., 若林知成, 松浦広行, 鈴木信三, 城丸春夫, 阿知波洋次, 日本物理学会講演概要集(年会),   1991 09
  • 中性炭素クラスターの粒子数選別および高密度化 (その2), 若林知成, 鈴木信三, 松浦広行, 城丸春夫, 橘高千恵子, 阿知波洋次, 化学反応討論会講演要旨集,   1991 06
  • 中性炭素クラスターの粒子数選別および高密度化, 若林知成, 鈴木信三, 城丸春夫, 橘高千恵子, 阿知波洋次, 日本化学会講演予稿集,   1991 03
  • 質量選別した中性クラスタービーム源の試作, 鈴木信三, 城丸春夫, 橘高千恵子, 若林知成, 阿知波洋次, 分子構造総合討論会講演要旨集,   1990 10

Misc

  • Aligning Small Gold Particles of Defined Size and Form, WAKABAYASHI Tomonari, Chemistry, 52, 4, 64, 65,   1997 04 , 招待有り, http://www.kagakudojin.co.jp/book/b221961.html

Awards & Honors

  •   2005 01 , The Fullerenes, Nanotubes, and Graphene Research Society, The First Osawa Award, Generation of Nanocarbon Arrays via Highly Exothermic Polymerization of Linear Carbon Molecules
  •   2002 10 , Japan Society for Molecular Science, Kobe Award for Young Molecular Scientists, Matrix Isolation Spectroscopy of Carbon Molecules

Research Grants & Projects

  • Ministry of Education, Culture, Sports, Science and Technology, Grants-in-Aid for Scientific Research(基盤研究(A)), Experimental studies on the macro-coherent amplification mechanism and two-photon paired super-radiance
  • Ministry of Education, Culture, Sports, Science and Technology, Grants-in-Aid for Scientific Research(挑戦的萌芽研究), Formation of carbon-rich molecules by fast ion impact
  • Ministry of Education, Culture, Sports, Science and Technology, Grants-in-Aid for Scientific Research(基盤研究(C)), Synthesis of novel carbon clusters in liquid phase by irradiation of intense femtosecond laser pulses
  • Ministry of Education, Culture, Sports, Science and Technology, Grants-in-Aid for Scientific Research(基盤研究(B)), Development of new techniques for the study of chemical reactions using superfluid He droplets
  • Ministry of Education, Culture, Sports, Science and Technology, Grants-in-Aid for Scientific Research(基盤研究(C)), Photochemistry of Linear and Cyclic Carbon Clusters
  • Ministry of Education, Culture, Sports, Science and Technology, Grants-in-Aid for Scientific Research(基盤研究(B)), Exact Free Radical Kinetics related to Atmospheric reactions among Minor Constituents.
  • Ministry of Education, Culture, Sports, Science and Technology, Grants-in-Aid for Scientific Research(基盤研究(B)), Ultra-High-Resolution Spectroscopy of Solid Hydrogen
  • Ministry of Education, Culture, Sports, Science and Technology, Grants-in-Aid for Scientific Research(基盤研究(A)), Uilta high resolution spectroscopy of excitons in quantum crystal
  • Ministry of Education, Culture, Sports, Science and Technology, Grants-in-Aid for Scientific Research(国際学術研究), Ultra High Resolution Spectroscopy of Solid Parahydrogen.