Radiative lifetimes of the à 2 A 1 ( v 3=0–2) states of CH3S
- 15 September 1990
- journal article
- letter
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 93 (6) , 4487-4488
- https://doi.org/10.1063/1.458687
Abstract
The radiative lifetimes of the v‴3 = 0–2 levels of the CH3S (Ã 2A1) radical have been determined by means of the laser‐induced fluorescence technique. CH3S was generated by either laser photolysis of CH3SSCH3 (both in cell and in supersonic expansion) or the reaction of F and CH3SH in a discharge‐flow system. The radiative lifetimes for v‴3 = 0, 1, and 2 levels are 1105±25, 910±20, and 250±10 ns, respectively, greater than previously reported values. The rate coefficients for the v‴3 = 0, 1, and 2 levels for quenching by CH3SSCH3 have also been determined to be 7.8, 7.8, and 16.5×10−10 cm3 molecule−1 s−1, respectively.Keywords
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