Two-dimensional penning ionization electron spectroscopy of carbon disulfide: Spectral assignments and anisotropic interactions with a He* (23S) metastable atom

Shan Xi Tian, Naoki Kishimoto, Koichi Ohno

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Collision-energy-resolved Penning ionization electron spectra are measured for carbon disulfide (CS2) by collision with a He*(23S) metastable atom. Assignments in Penning ionization electron spectrum are made on the basis of collision energy dependence of the partial ionization cross sections (CEDPICS). CEDPICS for the X2πg, A2πu, B2u+ and C2g+ states demonstrates that interactions for the He* access perpendicular to the molecular axis are more attractive than those for the collinear access,which is supported by the model calculations of the interaction potential energies. It is found that the perpendicular access plays an important role in a formation of the intermediate He+ + CS+2 state.

Original languageEnglish
Pages (from-to)40-48
Number of pages9
JournalChemical Physics Letters
Volume365
Issue number1-2
DOIs
Publication statusPublished - 2002 Oct 28

ASJC Scopus subject areas

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

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