Abstract
The rate constant, macroscopic branching ratio and vibrational distribution for the reaction O(1D) + H2S→OH + SH were measured. Temporal dependencies of the OH radical concentration in different ro-vibronic states were monitored by the LIF technique after laser flash photolysis of ozone which generated O(1D) atoms. The total rate constant was found to be (2.2±0.5 ) × 10-10 cm-3 molecule-1 s-1. The relative fraction of channel producing OH and SH radicals is 0.26 ± 0.04. The vibrational distribution of OH radicals P({ν}=0): P({ν}= 1) :P ({ν}=2) :P({ν}=3) :P({ν}=4) :P({ν}=5) = 0.19:0.21:0.26:0.2:0.11:0.03 is similar to that for the reaction of O (1D) atoms with H2, CH4 and NH3 which indicates the similar dynamics of these reactions.
Original language | English |
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Pages (from-to) | 604-610 |
Number of pages | 7 |
Journal | Chemical Physics Letters |
Volume | 212 |
Issue number | 6 |
DOIs | |
State | Published - 24 Sep 1993 |