Ultrafast Deactivation of the ππ∗(V) State of Ethylene Studied Using Sub-20 fs Time-Resolved Photoelectron Imaging

Takufumi Kobayashi, Takuya Horio, Toshinori Suzuki

研究成果: Contribution to journalArticle査読

21 被引用数 (Scopus)

抄録

The ultrafast deactivation process of ethylene in the ππ∗(V) state was studied using time-resolved photoelectron imaging with sub-20 fs pulses at 159 and 198 nm. The photoelectron kinetic energy distribution observed upon 159 nm photoexcitation exhibited a continuous downward shift within 20 fs, attributed to both C-C twist and pyramidalization motions. A partial revival of the vibrational wave packet was observed with the period of about 18 fs, which is attributed to the C-C twist from 0 to 180° on the ππ∗(V) potential energy surface. Signature for internal conversion from the ππ∗(V) state to a lower-lying π3s Rydberg (R) state, which has been previously suggested, was not detected in the time-dependent photoelectron kinetic energy and angular distributions.

本文言語英語
ページ(範囲)9518-9523
ページ数6
ジャーナルJournal of Physical Chemistry A
119
36
DOI
出版ステータス出版済み - 9 10 2015
外部発表はい

All Science Journal Classification (ASJC) codes

  • 物理化学および理論化学

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