title: Dioxygen activation by a non-heme iron(II) complex: formation of an iron(IV)-oxo complex via C-H activation by a putative iron(III)-superoxo species.
abstract: Iron(III)-superoxo intermediates are believed to play key roles in oxygenation reactions by non-heme iron enzymes. We now report that a non-heme iron(II) complex activates O(2) and generates its corresponding iron(IV)-oxo complex in the presence of substrates with weak C-H bonds (e.g., olefins and alkylaromatic compounds). We propose that a putative iron(III)-superoxo intermediate initiates the O(2)-activation chemistry by abstracting a H atom from the substrate, with subsequent generation of a high-valent iron(IV)-oxo intermediate from the resulting iron(III)-hydroperoxo species.
authors.affiliation: Department of Bioinspired Science, Ewha Womans University, Seoul 120-750, Korea.
authors.forename: Yong-Min
authors.initials: YM
authors.lastname: Lee
authors.forename: Seungwoo
authors.initials: S
authors.lastname: Hong
authors.forename: Yuma
authors.initials: Y
authors.lastname: Morimoto
authors.forename: Woonsup
authors.initials: W
authors.lastname: Shin
authors.forename: Shunichi
authors.initials: S
authors.lastname: Fukuzumi
authors.forename: Wonwoo
authors.initials: W
authors.lastname: Nam
mesh_terms: D005296:Ferrous Compounds / Q000138:chemical synthesis* / Q000737:chemistry*; D015394:Molecular Structure; D010100:Oxygen / Q000737:chemistry*
chemical_list: D005296:Ferrous Compounds; D010100:Oxygen