| Project/Area Number |
62045008
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| Research Category |
Grant-in-Aid for Overseas Scientific Survey.
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| Allocation Type | Single-year Grants |
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| Section | University-to-University Cooperative Research |
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| Research Institution | University of Tsukuba |
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Principal Investigator |
TOKUMARU Katsumi Department of Chemistry, University of Tsukuba, 化学系, 教授 (60011491)
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| Co-Investigator(Kenkyū-buntansha) |
ARAI Tatsuo Department of Chemistry, University of Tsukuba, 化学系, 講師 (50151139)
AKASAKA Takeshi Department of Chemistry, University of Tsukuba, 化学系, 助教授 (60089810)
SAKURAGI Hirochika Department of Chemistry, University of Tsukuba, 化学系, 助教授 (10011602)
ANDO Wataru Department of Chemistry, University of Tsukuba, 化学系, 教授 (30008429)
KIKUCHI Osamu Department of Chemistry, University of Tsukuba, 化学系, 教授 (30015771)
リオネル サレム パリ第11大学, 幅射物理化学研究室, 教授
ジェイ ベロニ パリ第11大学, 幅射物理化学研究室, 助教授
マリー デルクー パリ第11大学, 幅射物理化学研究室, 教授
ジャン フォール パリ第11大学, 幅射物理化学研究室, 教授
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| Project Period (FY) |
1987 – 1989
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| Project Status |
Completed (Fiscal Year 1989)
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| Budget Amount *help |
¥8,900,000 (Direct Cost: ¥8,900,000)
Fiscal Year 1989: ¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 1988: ¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 1987: ¥4,000,000 (Direct Cost: ¥4,000,000)
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| Keywords | Photoisomerization / Triplet State / Olefin / Radical Cation / Double Bond / Laser Photolysis / Photooxygenation / Quantum Yield |
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| Research Abstract |
To investigate the initial process and the detailed potential energy surfece of the one-way photoisomerization of aromatic olefins in the excited states and in the form of cation radical as well as the substituent effect on the reactivity of the cation radical with molecular oxygen we performed the following experiments.
1. Picosecond emission spectroscopic investigation for one-way isomerization around the single bond between the aromatic and olefinic moieties of anthracenylethylenes in the singlet excited state in flat membrane as well as in fluid solutions.
2. Nanosecond laser photolysis of anthrylethylenes in flat membrane as well as in fluid solutions to investigate the detailed potential energy surface of one-way isomerization in the excited triplet state.
3. Determination of the spin density of aromatic olefins to shed light on the factors governing the reactivity of the olefin radical cations with molecular oxygen as well as on the effect of substituent on the efficiency of one-way isomerization of aromatic olefins in the form of cation radical.
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