Abstract
The reaction between the solvated electron and trifluoromethyl halides has been used as a source of trifluoromethyl radicals in aqueous solutions. Pulse radiolysis studies have enabled the rate constants for the reactions e–aq+CF3X→CF3·+X–(X = Cl, Br and I) CF3·+ϕNH2→CF3NH2 CF3·+ HCOO–→CF3H+·COO– to be determined at 293 K. Competition kinetic methods have been used to measure a series of relative trifluoromethyl radical rate constants for hydrogen abstraction and addition reactions. The relative rate constants were combined with the pulse radiolysis data to yield a set of absolute rate constants. These reaction rates are discussed in relation to analogous radical reactions both in the liquid and gas phases.
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