Radiolysis of halogenated aromatic compounds in aqueous solutions—I conductometric pulse radiolysis and steady-state studies of the reaction of eaq−

Abstract

The reaction of e_aq⁻ with halogenated aromatic compounds (fluoro-, chloro-, bromobenzene, and 2-, 3-, 4-chloro-aniline) was studied by conductometric pulse radiolysis and under steady-state conditions. It was established that in the pH range from 4 to 10 all e_aq⁻ are reacting with the compound in question by quantitative splitting of the halide anion (X⁻). Considering certain experimental factors G(X⁻)=2.7 was obtained by both methods for all investigated substances. This fact is in disagreement with previous observations on various halogenated compounds. However, it can be explained taking all possible reactions for each system into account.