Reaction of a Co(iii)-peroxo complex with nitric oxide: putative formation of a peroxynitrite intermediate

Abstract

A Co(ii) complex, [CoII(L)2(H2O)2](ClO4)2, [L = bis(3,5-dimethylpyrazolyl)methane] in acetonitrile at −40 °C, in presence of H2O2 and NEt3 afforded [CoIII(L)2(O22−)]+, 1a. Addition of NO gas to this resulted in [CoII(L)2(NO3)]ClO4, (2) via a putative Co(ii)-peroxynitrite intermediate.