A flash photolysis–resonance fluorescence kinetics study of ground-state sulfur atoms. II. Rate parameters for reaction of S(3P) with C2H4

✍ Scribed by D. D. Davis; R. B. Klemm; W. Braun; M. Pilling

• Publisher: John Wiley and Sons
• Year: 1972
• Tongue: English
• Weight: 580 KB
• Volume: 4
• Category: Article
• ISSN: 0538-8066
• DOI: 10.1002/kin.550040403

✦ Synopsis

Absolute rate constants for the reaction of S(3P) with ethylene were measured over an ethylene concentration range of 7, a total pressure of 50 to 400 tom, and a flash intensity range of 10. At 298"K, the bimolecular rate constant was found to be invariant over this range of variables a& had a measured value of 4.96 X cm3 molec-' s-l. Over the temperature range of 218" to 442"K, the rate data could be fit to a simple Arrhenius equation of the form -1.58 f 0.08 kcal/mole R T k, = (7.13 f 0.74) X 10-12exp Units are cm3 molec-l s-l. tion of the reaction product ethylene episulfide is discussed.

The dependence of the measured value of kl on the concentra-* Acknowledgement is made by this author to the donors of the Petroleum Research Fund, administered by the American Chemical Society, for support of this research.

t The research carried out at the University of Maryland is part of a thesis to be submitted to the faculty of the University of Maryland in partial fulfillment of the requirements for the degree of Doctor of Philosophy.