Rotational distributions of CO2+ (X̃ 2Πg) produced by electron-impact ionization of supercooled CO2

Atsushi Nakajima, Takashi Nagata, Tamotsu Kondow, Kozo Kuchitsu

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3 Citations (Scopus)


Laser-induced fluorescence of CO2+ (X̃ 2Πg) produced by electron impact on CO2 in a supersonic beam was measured. An analysis of the CO2+ (Ã-X̃) spectra has revealed that the rotational distribution of CO2+ is essentially Boltzmann and that the effective rotational temperature increases uniformly with decreasing impact energy, 26± 1 K at 300 eV and 31 ± 1 K at 45 eV. This trend of rotational excitation, which is similar to that observed in the N2 + e system, is interpreted in terms of the rotational transitions in electron-impact ionization.

Original languageEnglish
Pages (from-to)511-515
Number of pages5
JournalChemical Physics Letters
Issue number6
Publication statusPublished - 1988 Oct 28
Externally publishedYes

ASJC Scopus subject areas

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


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