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The gas-phase reaction of i-C,F, radicals with cyanogen chloride has been studied between The main product, 2-~hloroheptafluoropropane, is formed via chlorine-atom abstraction by (6) 70 and 330 OC, using heptafluoro-2-iodopropane as the free-radical source.i-C,F, :for which log,, [(k,/kk)/cm: mol-4 s-k] = 6.27-14.41/2.303 RT was obtained. At lower temperatures the Arrhenius plot shows curvature. This was interpreted as the occurrence of another reaction producing C,F,Cl, which could be

The reaction of C,F, radicals with cyanogen chloride was studied between 293 and 573 K, using perfluoroethyl iodide as the free-radical source. CJ,. The reactions involved areThe main product, C2F,C1, is tormed via an addition reaction or

The reactions of some perfluoroalkyl radicals with carbon tetrachloride have been studied using the photolysis of the corresponding perfluoroalkyl iodide as the free radical source. The Arrhenius parameters, based on the value of 2.3 x 1013 cm3 mol-' s-' for the self-combination rate constant of all radicals are: