Absolute rate of the reaction of O(3P) with hydrogen sulfide over the temperature range 263 to 495 K
- 15 September 1976
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 65 (6) , 2052-2055
- https://doi.org/10.1063/1.433387
Abstract
The technique of flash photolysis coupled with time resolved detection of O via resonance fluorescence has been used to obtain rate constants for the reaction of O(3P) with H2S at temperatures from 263 to 495 K and at pressures in the range 10–400 torr. Under conditions where secondary reactions are avoided, the measured rate constants for the primary step obey the Arrhenius equation k= (7.24±1.07) ×10−12 exp(−3300±100/1.987 T) cm3 molecule−1 sec−1. The results are discussed and comparisons are made with previous work and theoretical predictions. Experiments with D2S show that the reaction exhibits a primary isotope effect, in support of a hydrogen abstraction mechanism.This publication has 12 references indexed in Scilit:
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