Reactions of aliphatic free radicals with copper cations in aqueous solution. Part 2.—Reactions with cupric ions: a pulse radiolysis study

Abstract

Reactions of Cu²⁺_aq with the aliphatic-free radicals ·CH₂CO^–₂, CH₃[graphic omitted]HCO^–₂, O^–₂C[graphic omitted]HCH(OH)CO^–₂, ·CCl₃, [graphic omitted]H₂CH₂OH and ·CH₂C(CH₃)₂OH in aqueous solutions were studied.

In these reactions the formation of unstable intermediates absorbing in the u.v. range was observed. This absorption is attributed to compounds with copper–carbon σ bonds. The kinetics of formation and decomposition of these intermediates are reported and discussed. No intermediates were observed when Cu²⁺_aq reacts with ·CR₁R₂OH-free radicals. Cu⁺_aq is one of the final products in all systems studied.