凝縮相におけるフォムトおよびピコ秒ダイナミックスの展開と新実験手法の探索

1992 Fiscal Year Annual Research Report

• Project/Area Number: 04303001
• Research Institution: Kyoto Institute of Technology
• Principal Investigator: 濱之上 熊男 京都工芸繊維大学, 工芸学部, 教授 (30025374)
• Co-Investigator(Kenkyū-buntansha): 国分 泱 東北大学, 理学部, 教授 (50004271) ; 吉原 經太郎 分子科学研究所, 教授 (40087507) ; 増原 宏 大阪大学, 工学部, 教授 (60029551) ; 閑 春夫 群馬大学, 工学部, 教授 (40008454) ; 小尾 欣一 東京工業大学, 理学部, 教授 (10016090)
• Keywords: フェムト秒ダイナミックス / ピコ秒ダイナミックス / 凝縮相

Research Abstract

励起分子のエネルギー緩和は一般にナノ秒からフェムト秒に亙る高速過程であるが、これらの追跡手段としてのレーザー分光に関する最近の発展には目覚しいものがあり、短寿命励起分子の構造のダイナミックスに関する研究が広範囲に行われている。しかしながら、特にピコ秒より遅い時間領域でのレーザー分光においては、もはやブレイクスルー的な発想の転換と定量性のある実験および新実験手法の開発が問われている。このような状況にも拘らず、わが国の凝縮相に於ける励起分子に関する研究は研究者独自の興味と手法によって行われてきた。その意味においても、今回の研究協力体制は研究形態の一つのプロトタイプとして今後の研究の進展に大いに貢献できるものと考えた。また,その成果は光物理、光化学、光生物学と云った純学問分野のみならず、新素材開発のような応用分野にも大きく波及していくものと期待した。
研究内容に基づき、研究グループを次の二つの分科会に分けた。研究分担者はいずれかのグループに属し各分担現題に関する研究・調査を行った。1992年12月26〜27日には総合研究(A)「凝縮相のおけるフォムトおよびピコ秒ダイナミックスの展開と新実験手法の探索]と題して総合討論会を開催し、各自の課題研究に関する討論を敢えて批判的に行うことにより今後の研究の飛躍的な質的発展を祈願した。
なお,各自の研究成果に関する報告書は近日中に刊行予定である。
分科会1.凝縮相・フェムト秒ダイナミックスの展開と新実験手法の探索
(山崎,吉原,梶本,浜之上,中山,宮坂,増原,岡田,斎官,小山)
分科会2.凝縮相・ピコ秒ダイナミックスの展開と新実験手法の探索
(安積,国分,閑,小尾,疋田,田川,浜口,伊藤,広田,大野)

Research Products

• [Publications] K.Hamanoue: "Dechlorination of Meso-Substituted Chloroanthracenes via Their Radical Anions Produced by a Diffusion-Controlled Reaction of the Lowest Excited Singlet States of Chloranthracenes with Ground-State Amine" The Journal of Physical Chemistry. 96. 10297-10302 (1992)
• [Publications] K.Hamanoue: "Reinvestigation of Photochemical Debromination of 9,10-Dibromoanthracene and 9-Bromoanthracene by Amine Studied by Nanosecond Laser Photolysis in Acetonitrile at Room Temperature" J.Phochem.Photobiol.,A:Chem.,. 69. 305-312 (1993)
• [Publications] T.Nagamura: "The Dual Phosphrescence of o-Benzoylbenzoic Acid and Methyl-o-benzoylbenzoate in Rigid Matrixes at 77 K" The Journal of Physical Chemistry.
• [Publications] H.Miyasaka: "Picosecond Laser Photolysis Studies on the Intramolecular Photoreduction Process of Benzophenone by Diphenylamine Linked by Spacers in Acetonitirle Solution" Chemical Physics Letters. 199. 21-28 (1992)
• [Publications] H.Miyasaka: "Femotosecond-Picosecond Laser Photolysis Studies on Reduction Process of Excited Benzophenone with N-Methyldiphenyamine in Acetonitrile Solution" The Journal of Physical Chemistry. 96. 8060-8065 (1992)
• [Publications] M.Yanagimachi: "Solvation Dynamics of a Coumarine Dye at Liquid-Solid Interface Layer Picosecond Total Internal Reflection Fluorescence Study" Chemical Physics Letters. 200. 469-474 (1992)
• [Publications] M.Yanagimachi: "Excited-State Proton Transfer of 1-Naphtol in Liquid-Solid Interface Layer.Picosecond Time-Resolved Total Reflection Fluorescence Study" Chemical Physics Letters. 201. 115-119 (1993)
• [Publications] N.Tamai: "Intersystem crossing of Benzophenone by Femtosecond Transient Grating Spectroscopy" Chemical Physics Letters. 198. 413-418 (1992)
• [Publications] M.Ynagimachi: "Depth Profile of Pyrene Dopant in Polymer Films by Variable-Angle Total Internal Reflection Fluorescence Spectroscopy" Applied Spectroscopy. 46. 832-840 (1992)
• [Publications] H.Murakami: "Transient Hole-Burning and Time-Resolved Fluorescence Spectra of Dye Molecules in Solution:Evidence for Ground-State Relaxation and Hole-Filling Effect" Journal of Chemical Physics. 97. 7881-7888 (1992)
• [Publications] Y.Hirata: "Picosecond Time-resolved Absorption Spectrum Measurements of the Higher Excited Singlet State of Diphenylacetylene in the Solution Phase" The Journal of Physical Chemistry. 96. 6559-6563 (1992)
• [Publications] S.Saikan: "Non-Markovian RElaxation Observed in Phonon Echoes of Iron-Free Myoglobin" Physical Review B. 46. 11125-11128 (1992)
• [Publications] S.Saikan: "Non-Markovian Behavior in Stimulated Phonon Echoes:Waiting-Time Dependence" Physical Review A.
• [Publications] N.Ichinose: "Excitation Energy Relaxation and Dimer Formation of Fluorene in Langmuir-Blodgett Monolayer Films" Chemical Physics Letters. 197. 364-368 (1992)
• [Publications] N.Tamai: "Excitation Energy Relaxation of Oxacyanine in Langmuir-Blodgett Monolayer Films:Picosecond Time-Resolved Fluorescence Studies" The Journal of Physical Chemistry. 96. 6550-6554 (1992)
• [Publications] T.Aizawa: "The Effect of the Coulomb Force the Diffusional Motion of radicals as Studied by Solvent Permitivity Dependence of the CIDEP Intensity." Chemical Physics Letters. 195. 16-20 (1992)
• [Publications] K.Maeda: "Determination of the Exchange Integral by the Low-Field CIDNP in Intramolecular Hydrogen Abstruction Reaction of Polymethlene-Linked Xanthone and Xantheme." The Journal of Physical Chemistry. 96. 4884-4889 (1992)
• [Publications] S.Kaneko: "Laser Flash Photolysis Studies on Proton-Enhanced Hydrogen Atom Transfer Reaction from Triplet Naphthol to Benzophenone via a Triplet Exciplex" The Journal of Physical Chemistry. 96. 8028-8033 (1992)
• [Publications] M.Yamaji: "Proton-Induced Electron-Transfer Reaction from Triplet Methoxynaphthalenes to Benzophenone via Triplet Exciplex" The Journal of Physical Chemistry. 96. 9353-9359 (1992)
• [Publications] Y.Matsushita: "Photochemical Reaction of Excited Benzophenone in the Gas Phase." The Jouranal of Physical Chemistry. 96. 4455-4458 (1992)
• [Publications] Y.Matsushita: "Hydrogen Abstruction in the Neutral Molecular Cluster of Benzophenone and Hydrogen Donors Formed in a Supersonic Free Jet Expansin." The Joirnal of Physocal Chemistry. 96. 6566-6570 (1992)
• [Publications] Y.Kajii: "Complex Formatoin of Benzophenone Ketyl Radical and Triethylamine." The Journal of Physical Chemistry. 96. 7244-7247 (1992)
• [Publications] K.Iwata: "Picosecond Structural Relaxation of S_1Trans-Stibene in Solution as Revealed by Time-Resolved Raman Spectroscopy." Chemical Physics Letters.196. 462-468 (1992)
• [Publications] T.Tahara: "Transient Raman Studies on the Structure of the Chloranil-Alkylbenzene Triplet Charge-Transfer Complexes." The Journal of Physical Chemistry. 96. 8252-8259 (1992)
• [Publications] A.Ito: "Intramolecular Excited-State Proton Transfer in Jet-Cooled 2-Substituted 3-Hydroxychromones and Their Water Clusters" Journal of Chemical Physics. 96. 7474-7482 (1992)
• [Publications] N.Kizu: "Exciplex and Charge-Transfer Complex Fluorescence in the Inter-and Intramolecular Jet-Cooled EDA Systems" The Journal of Physical Chemistry. 96. 5796-5800 (1992)
• [Publications] M.terazima: "Population lens in thermal Lens Spectroscopy." The Journal of Physicl Chemistry. 96. 7147-7150 (1992)
• [Publications] K.Nozaki: "Intramolecular Electron transfer in Photoexited Ru(II)-Ru(III) Bi nuclear Compounds." The Journal of Physical Chemistry. 96. 10880-10888 (1992)
• [Publications] T.Ohno: "A Metal-to-Ligand Charge-Transfer Excited states of a birutenium(II) Compounds Bridged by 2,6-Bis(2-pyridyl)benzodiimidazole." Inorganic Chemistry. 31. 4256-4261 (1992)