Laser-Driven Oxidation of Some Haloolefins.

Abstract CW CO 2 laser-photosensitized (SF 6 ) oxidation of hexafluoropropene, chlorotrifluoroethene, l,l-dichlorodifluoroethene, 1,2-dichlorodifluoroethene and hexafluoro-1,3-butadiene with molecular oxygen at total pressure 13-26.5 kPa leads with all but the last to the formation of carbonyl halides. The distribution of these products suggests that the oxidation occurs via a cleavage of intermediary dioxetanes. The reactivities of the olefins towards oxygen at mean effective temperature 710 K are nearly equal.