Lifetimes of Excited Levels in Some Important Ion-Molecules, Part III: CS+, COS+

Abstract

Lifetimes of the recently discovered B-A system in CS⁺ and of the à - system in COS⁺ have been studied using the High Frequency Deflection Technique. The measured CS⁺ lifetime (425 ns) supports the identification of the B-A system by comparisons with CO⁺. Different lifetimes are found for the (0, 0, 0) à ²Π_3/2 and à ²ΠA_1/2 levels in COS⁺ (105 ± 3 ns and 77 ± 3 ns respectively), which shows that the earlier discovered predissociation is different for the two levels.