Collision-energy-resolved Penning ionization electron spectroscopy of bromomethanes (CH3Br, CH2Br2, and CHBr 3) by collision with He*(23S) metastable atoms

Naoki Kishimoto, Eiichi Matsumura, Koichi Ohno, Michael S. Deleuze

研究成果: Article査読

8 被引用数 (Scopus)

抄録

The collision-energy-resolved Penning ionization electron spectroscopy was used for investigating the occurrence of ionization of bromomethanes upon collision with metastable He*(23S) atoms. Lone-pair (n Br) orbitals of Br4p characters were found to have larger ionization cross sections than σc-Br orbitals. The negative collision-energy dependence of the partial ionization cross sections associated to the S* band indicated an attractive interaction for the entrance channel. The results of the collision-energy dependence of the partial ionization cross sections shows that the interaction potential between the molecule and the He excited state atom is highly anisotropic.

本文言語English
ページ(範囲)3074-3086
ページ数13
ジャーナルJournal of Chemical Physics
121
7
DOI
出版ステータスPublished - 2004 8月 15

ASJC Scopus subject areas

  • 物理学および天文学(全般)
  • 物理化学および理論化学

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