Deactivation of I(5²P_1/2) by CF₃I, CH₃I, C₂H₅I, and CH₄

Abstract

The technique of laser photolysis of alkyl and perfluoroalkyl iodides at 266 nm followed by time-resolved detection of the 1.3-pm emission from I*('PLI2) has been used to measure the rate constants for deactivation of I* by CH31, C'HJ, CF31, and CH,.The recommended values are (2.76 2 0.22) x (2.85 2 0.40) x (3.5 2 0.5) x and (7.52 2 0.12) X lo-',, respectively, in units of cm3 molecule-' s -' .