Orientation dependence of the CN*(B, A) formation in the reaction of Ar(3P) with the oriented CH3CN

Toshio Kasai, Dock Chil Che, Kazuhiko Ohashi, Keiji Kuwata

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8 Citations (Scopus)


The CN*(B, A-X) chemiluminescence as a function of the collisional geometry from the "head" to the "tail" orientation was studied in the reaction of the Ar(3P) atoms with the oriented CH3CN molecules using hexapole state selection. A large orientation dependence of CN emission was observed. The intensities of the CN emission were analyzed by the hard-sphere model, and it was found that the ratio of the emission probabilities for the head-on and the tail-end attacks was ≈ 3.1. This large stereo anisotropy in CN* formation is discussed in terms of the overlap between the molecular orbitals of CH3CN and the atomic orbital of Ar(3P).

Original languageEnglish
Pages (from-to)246-250
Number of pages5
JournalChemical Physics Letters
Issue number2-3
Publication statusPublished - Nov 10 1989
Externally publishedYes

All Science Journal Classification (ASJC) codes

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

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