研究者情報 | 神奈川大学

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
言語種別	英語
発行・発表の年月	2013/08
形態種別	学術雑誌
査読	査読あり
標題	A new reaction mechanism of Claisen rearrangement induced by few-optical-cycle pulses: demonstration of non-thermal chemistry by femtosecond vibrational spectroscopy.
執筆形態	共著
掲載誌名	Pure and applied Chemistry
掲載区分	国外
巻・号・頁	85(10),pp.1991-2004
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, Jun Liu, Kotaro Okamura, Satoko Kezuka, Takayoshi Kobayashi
概要	Time-resolved vibration spectroscopy is the only known way to directly observe reaction processes. In this work, we measure time-resolved vibration spectra of the Claisen rearrangement triggered and observed by few-optical-cycle pulses. Changes in molecular structure during the reaction, including its transition states (TSs), are elucidated by observing the transient changes of molecular vibration wavenumbers. We pump samples with visible ultrashort pulses of shorter duration than the molecular vibration period, and with photon energies much lower than the minimum excitation energy of the sample. The results indicate that the "nonthermal Claisen rearrangement can be triggered by visible few-optical-cycle pulses exciting molecular vibrations in the electronic ground state of the sample, which replaces the typical thermal Claisen rearrangement.
DOI	https://doi.org/10.1351/pac-con-12-12-01
researchmap用URL	https://www.degruyter.com/document/doi/10.1351/pac-con-12-12-01/html