Abstract
The photolysis of perfluoroacetyl chloride vapour was studied in the pressure range 4.6–59.9 Torr and with addition of inert gas up to 535.2 Torr using light of 254 and 280 nm. The quantum yield for the decomposition of CF 3COCl taken as Φ[CF 3Cl+2C 2F 6] = 0.98±0.13 was not affected by the total pressure, the intensity and the wavelength of the light within the studied range of conditions. In the presence of c-C 6H 12 a clear hydrogen abstraction reaction took place indicating the presence of CF 3 radicals. An upper limit for the rate of hydrogen abstraction of log k H(cm 3 mol −1 s −1) = 7.9 at 298 K was obtained. Light emission was not observed over the range 330–600 nm. Mechanisms for the decomposition of perfluoroacyl halides are discussed.
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