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

Takefumi Chishiro; Yuichi Shimazaki; Fumito Tani; Yoshinori Naruta

doi:10.1039/b413275k

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

Chem Commun (Camb). 2005 Feb 28:(8):1079-81. doi: 10.1039/b413275k. Epub 2005 Jan 12.

Authors

Takefumi Chishiro¹, Yuichi Shimazaki, Fumito Tani, Yoshinori Naruta

Affiliation

¹ Institute for Materials Chemistry and Engineering, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan.

PMID: 15719122
DOI: 10.1039/b413275k

Abstract

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 H2O2 to regenerate the micro-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-H2O2 reactions.