Radiolysis of aqueous solutions of dihalobenzenes: studies on the formation of halide ions by ion chromatography

Ion-chromatographic technique has been employed to estimate the halide ion yield formed on reaction of eaq− and OH radicals with 1-fluoro-n-iodobenzene, 1-bromo-n-iodobenzene, 1-fluoro-n-bromobenzene, 1-chloro-n-iodobenzene (n=2,3,4). The halide ion yield is observed to depend upon bond strength, electron affinities and relative positions of halogen on the benzene ring. Radiation chemical yields of the halide ion are compared for a pair of halogen atoms with respect to their relative position. The inter comparison of yields for similarly substituted different halogen has also been carried out.