A study of the mechanism and kinetics of the reaction of O(³<i>P</i>) atoms with propane

Abstract

Abstract The mechanism and kinetics of the reaction of O( 3 P ) atoms with propane were investigated using molecular modulation spectroscopy, with the O( 3 P ) atoms being generated by the Hg photosensitized decomposition of N 2 O. The absorption spectrum of the X 2 II 3/2 state of OH was observed in the ultraviolet between 307 and 309 nm, and it was confirmed that OH was the product of the O( 3 P ) reaction with propane. The rate constants for the reactions of O( 3 P ) and OH with propane were determined to be 3.9±0.7±10 10 and 1.19±0.05±10 12 cm 3 /mole·sec, respectively, at T =56±5°C.