Collisional deactivation of CO+ A 2Π (ν = 0–2) by He, Ne, Ar, N2, and CO

✍ Scribed by Takashi Imamura; Takashi Imajo; Inosuke Koyano

• Publisher: Elsevier Science
• Year: 1991
• Tongue: English
• Weight: 501 KB
• Volume: 178
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(91)90272-b

✦ Synopsis

Collisional deactivation rate constants of CO+ A 'fI(v=O and 2) by He, Ne. Ar, N,, and CO have been determined by using a time-resolved laser-induced fluorescence technique. The results were combined with the previously determined Y= 1 rate constants to obtain an interesting u dependence of the rate constant. It has been found that the collisional deactivation rates by Ar, Nz, and CO are as large as the Langevin gas kinetic ones and almost independent of the vibrational level of CO+ A %. Contrary to the case of Ar. Nz, and CO, the rate constants by He and Ne have been found to be two or three orders of magnitude smaller than the Langevin and sensitive to the vibrational level. The results are related to the abailability of a charge transfer state, which is energetically allowed with the former group of quenchers, while it is not with the latter group of molecules.