The rates of phenoxyl radical reactions with the superoxide anion radical, 02'-, a peroxyl radical, HOC (CH&-CH200', and an alkyl radical, HOC (CH3) 2CH2', in aqueous solution have been measured for 15 different phenoxyl radicals by means of pulse radiolysis. In addition, the one-electron reduction potentials of 10 phenoxyl radicals have been determined. The fraction of electron transfer in the reaction of phenoxyl radicals with 02'- ...