2016 Fiscal Year Final Research Report
Analyses of electron-molecular vibration interaction and mode-selective control of electron transfer by infrared light
| Project/Area Number |
26410023
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Physical chemistry
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| Research Institution | Aoyama Gakuin University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | 分子分光 / 電子－分子振動相互作用 / 赤外分光 / 電荷移動 / 時間分解分光 / 光励起ダイナミクス |
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| Outline of Final Research Achievements |
We measured and analyzed infrared absorption spectra of a radical cation (monomer), its dimer, and a dication of oligothiophene derivatives. Some vibrational modes which induce intermolecular charge transfer are identified. Radical anions (RA) of triphenylene (planar) and sumanenetrione (bowl-shaped), were also studied by infrared absorption spectroscopy. By comparing infrared absorption spectra measured under inert gas atmosphere and those obtained by quantum chemical calculations, we found that the threefold axis in triphenylene RA disappears while the axis in sumanentrion RA remains.
We studied photoexcitation dynamics of regioregular poly(3-hexylthiophene) in a spin-coated film and in solutions by femtosecond time-resolved infrared spectroscopy. We also studied the molecular structures and their dynamics of photoexcited states of fast photochromic molecules and a flapping molecule by time-resolved infrared spectroscopy.
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| Free Research Field |
構造化学，分子分光学，物理化学
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