Stereodynamics and outer valence ionic states of ferrocene in collisional ionization with a He*(23S) metastable atom by two-dimensional Penning ionization electron spectroscopy

Naoki Kishimoto, Koichi Ohno

研究成果: Article査読

4 被引用数 (Scopus)

抄録

Outer valence ionic states of ferrocene were investigated by means of Penning ionization electron spectroscopy upon collision with metastable He *(23S) excited atoms. By two-dimensional measurement combining electron spectroscopy and collision-energy-resolved technique of the metastable atomic beam, ionic-state-resolved measurements of collision energy dependence of partial Penning ionization cross sections (CEDPICS) were carried out. Since the partial Penning ionization cross sections can be connected with spatial extension of corresponding molecular orbitals (MOs) outside the boundary surface for the collision with He* atoms, different slope values of CEDPICS were related with stereodynamics in Penning ionization as well as anisotropic interaction around the ionization region: attractive interaction around ligand π orbitals and repulsive interaction around ligand σ orbtials and the metal atom. The observed negative collision energy dependence of ionization cross sections for the first (2E2') and second (2A1′) ionic states was consistent with configuration interactions suggested by ab initio MO calculations [J. Chem. Phys. 2002, 117, 6533], which is due to the strong electron correlation effects beyond the one-electron MO description.

本文言語English
ページ(範囲)521-526
ページ数6
ジャーナルJournal of Physical Chemistry A
113
3
DOI
出版ステータスPublished - 2009 1 22

ASJC Scopus subject areas

  • 物理化学および理論化学

フィンガープリント

「Stereodynamics and outer valence ionic states of ferrocene in collisional ionization with a He*(2<sup>3</sup>S) metastable atom by two-dimensional Penning ionization electron spectroscopy」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