A flash photolysis–resonance fluorescence kinetics study of ground-state sulfur atoms. IV. Rate parameters for reaction of S(3P) with propene and 1-butene

Using the technique of flash photolysis-resonance fluorescence, absolute rate constants have been measured for the reaction of S(³P) with propene and 1-butene. Variations in experimental conditions included the following: temperature (215–500°K); total pressure a factor of 10; olefin concentration, a factor of 6; flash intensity (S atom concentration), a factor of 10. It was found that over these variations in the experimental conditions only the temperature had a measureable effect on the bimolecular rate constant. The derived Arrhenius rate expressions for the reactions (2) and (3) were as follows: temperature range 214–500°K Units are cm³ molec^?1 s^?1.