Effect of HOMO levels on chemiionization of substituted ethylenes by metastable helium atoms

Hideo Yamakado, Kohji Okamura, Keijiro Ohshimo, Naoki Kishimoto, Koichi Ohno

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

Chemiionization reactivity (Penning ionization cross section) of substituted ethylenes in collision with helium metastable atoms was studied by velocity-resolved Penning ionization electron spectroscopy. Collision energy dependences of ionization probabilities of π orbitals were found to correlate with the HOMO levels. The higher the HOMO levels, the more effectively the reactive site of the ethylenes is hit by metastable atoms because of increased attractive interactions.

Original languageEnglish
Pages (from-to)269-270
Number of pages2
JournalChemistry Letters
Issue number3
DOIs
Publication statusPublished - 1997 Jan 1

ASJC Scopus subject areas

  • Chemistry(all)

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