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イワクラ イズミ
Iwakura Izumi 岩倉 いずみ 所属 神奈川大学 化学生命学部 応用化学科 神奈川大学大学院 工学研究科 工学専攻(応用化学領域) 職種 教授 |
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言語種別 | 英語 |
発行・発表の年月 | 2016/03 |
形態種別 | 学術雑誌 |
査読 | 査読あり |
標題 | Development of Novel Reactions Induced by Coherent Molecular Vibrational Excitation and Direct Observation of Molecular Structural Change during "Thermal" Reactions. |
執筆形態 | 共著 |
掲載誌名 | Bulletin of the Chemical Society of Japan |
掲載区分 | 国外 |
出版社・発行元 | The Chemical Society of Japan |
巻・号・頁 | 89(3),pp.296-307 |
担当区分 | 筆頭著者,責任著者 |
国際共著 | 国際共著 |
著者・共著者 | Izumi Iwakura*, Atsushi Yabushita |
概要 | Femtochemistry began from the observation of transition states (TSs) in gas-phase photoreactions. Later developments in visible ultrashort laser pulses enabled visualization of real-time changes in the molecular vibrational modes during photoreactions, including those in the liquid phase. However, TSs in thermal reactions could still not be studied, because the conventional femtosecond laser pulse cannot trigger chemical reactions in the electronic ground state. In the present work, a visible ultrashort laser pulse was used to cause an induced Raman process, whereby Raman active molecular vibrational modes were excited in the electronic ground states, which triggers the reaction induced by coherent molecular vibrational excitation in the electronic ground state just after photoexcitation. Using the "reaction by coherent molecular vibration", we have successfully observed the TSs in a "thermal" reaction, thermal Claisen rearrangement. |
DOI | https://doi.org/10.1246/bcsj.20150242 |
researchmap用URL | https://www.journal.csj.jp/doi/abs/10.1246/bcsj.20150242 |