Cyanoanthracene-sensitized photooxidations of N,N-dibenzylhydroxylamine and its derivatives; observation of the Marcus ‘inverted region’ in back electron transfer within geminate radical ion pairs

Abstract

Back electron transfer within geminate radical ion pairs formed by electron transfer from the title hydroxylamines to singlet 9-cyano- and 9,10-dicyano-anthracenes in acetonitrile is shown to occur in the Marcus ‘inverted region’ and ‘normal region’, respectively.