Relative rate constants for the reaction of ground-state oxygen atoms with fluorinated ethylenes

Abstract

Relative rate constants for the reaction of oxygen atoms with the fluorinated ethylenes in the gas phase have been measured at 23°C with the following results (relative to ethylene): CH₂CHF–0.38; CH₂CF₂–0.22; cis-CHFCHF–0.32; trans-CHFCHF–0.54;CHFCF₂–0.57; CF₂CF₂–1.60. The results are compared with data for other atoms and radicals with the same olefins, and briefly discussed in terms of the electronic changes produced in the double bond by fluorine substitution.