Collision-energy-resolved penning ionization electron spectroscopy of p-benzoquinone: Study of electronic structure and anisotropic interaction with He*(23S) metastable atoms

Naoki Kishimoto, Kohji Okamura, Koichi Ohno

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

The electronic structure of p-benzoquinone (PBQ) was analyzed on the basis of anisotropic interaction around the molecule and the anisotropic electron density distribution of molecular orbitals (MO) to be ionized. The different collision energy dependence of partial Penning ionization cross sections (CEDPICS) upon collision with metastable atoms was used for the study. Attractive interactions were found for in-plane and out-plane directions, while repulsive interactions were found around CH bonds and the benzenoid ring. An extra band that shows negative CEDPICS was observed in Penning ionization electron spectrum.

Original languageEnglish
Pages (from-to)11062-11070
Number of pages9
JournalJournal of Chemical Physics
Volume120
Issue number23
DOIs
Publication statusPublished - 2004 Jun 15

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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