Anisotropic interaction and stereoreactivity in a chemi-ionization process of OCS by Collision with He*(23S) Metastable Atoms

Takuya Horio, Satoshi Maeda, Naoki Kishimoto, Koichi Ohno

研究成果: Contribution to journalArticle査読

3 被引用数 (Scopus)

抄録

Ionic-state-resolved collision energy dependence of Penning ionization cross sections for OCS with He*-(23S) metastable atoms was measured in a wide collision energy range from 20 to 350 meV Anisotropic interaction potential for the OCS-He*(23S) system was obtained by comparison of the experimental data with classical trajectory simulations. It has been found that attractive potential wells around the O and S atoms are clearly different in their directions. Around the O atom, the collinear approach is preferred (the well depth is ca. 90 meV), while the perpendicular approach is favored around the S atom (the well depth is ca. 40 meV). On the basis of the optimized potential energy surface and theoretical simulations, stereo reactivity around the O and S atoms was also investigated. The results were discussed in terms of anisotropy of the potential energy surface and the electron density distribution of molecular orbitals to be ionized.

本文言語英語
ページ(範囲)11010-11017
ページ数8
ジャーナルJournal of Physical Chemistry A
110
38
DOI
出版ステータス出版済み - 9 28 2006
外部発表はい

All Science Journal Classification (ASJC) codes

  • 物理化学および理論化学

フィンガープリント

「Anisotropic interaction and stereoreactivity in a chemi-ionization process of OCS by Collision with He*(2<sup>3</sup>S) Metastable Atoms」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル