An end-on bis(μ-hydroxido) dimanganese(ii,iii) azide complex for C-H bond and O-H bond activation reactions

We report the synthesis of an end-on dinuclear Mn(ii) azide complex with two bridging azide ligands that served as a precursor for the formation of an end-on bis(μ-hydroxido) dinuclear Mn(ii,iii) azide complex upon oxidation by organic peroxide or peracids. Combined experimental and theoretical studies on the reactivity of the end-on bis(μ-hydroxido) dinuclear Mn(ii,iii) azide complex suggest that the reaction with substrates having weak C-H bond and O-H bond dissociation energy occurred via a H-atom abstraction reaction in a concerted manner.