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	2009/01
形態種別	学術雑誌
査読	査読あり
標題	Transition States and Nonlinear Excitations in Chloroform Observed with a Sub-5 fs Pulse Laser.
執筆形態	共著
掲載誌名	Journal of the American Chemical Society,
掲載区分	国外
巻・号・頁	131(2),pp.688-696
担当区分	筆頭著者
国際共著	国際共著
著者・共著者	◎Izumi Iwakura, Atsushi Yabushita, Takayoshi Kobayashi
概要	Sub-5 fs pulse dynamics observed in neat chloroform and the charge-transfer complex, O₂-CHCl₃, in oxygen-saturated chloroform were found to be dominated by wave packet motions in the excited state (Ex) and the ground state (G), respectively. The time-resolved signal of chloroform exhibits dynamics in the Ex generated by a three-photon absorption process, and that of O₂-CHCl₃ is explained in terms of the dynamics of the G excited by the stimulated Raman process. In addition, we found that the oxidation reaction of chloroform in the charge-transfer complex of chloroform and oxygen easily proceeds via a C-H insertion process triggered by the stimulated Raman process under the irradiation of a visible laser pulse. These results demonstrate that observation of transition states by sub-5 fs time-resolved spectroscopy is applicable to " G reactions" as well as " Ex reactions" via stimulated Raman excitation in a wide variety of chemical reactions.
DOI	https://doi.org/10.1021/ja801829n
researchmap用URL	https://pubs.acs.org/doi/10.1021/ja801829n