Selective formation of a stable μ-peroxo ferric heme-Cu~Ⅱ complex from the corresponding μ-oxo Fe~Ⅲ-Cu~Ⅱ species with hydrogen peroxide

摘要

An oxo-bridged ferric heme-copper(Ⅱ) complex, obtained by thermal transformation of the corresponding peroxo-bridged complex, was reacted with an equimolar amount of H_2O_2 to regenerate the μ-peroxo complex by a ligand exchange from oxo to peroxo, without the formation of a ferryl-oxo species or heme degradation as are observed in general ferric heme-H_2O_2 reactions.