title: Reactions of tetrabromocatecholatomanganese(III) complexes with dioxygen.
abstract: New five- and six-coordinate complexes containing the [Mn(III)(Br4cat)2](-) core (Br4cat(2-) = tetrabromo-1,2-catecholate) have been prepared. Homoleptic [Mn(III)(Br4cat)3](3-) reacts rapidly with O2 to produce tetrabromo-1,2-benzoquinone (Br4bq). The [Mn(III)(Br4cat)2](-) fragment is a robust catalytic platform for the aerobic conversion of catechols to quinones. The oxidase activity apparently derives from the coupling of metal- and ligand-centered redox events.
authors.affiliation: School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, USA.
authors.forename: Clarence J
authors.initials: CJ
authors.lastname: Rolle
authors.forename: Kenneth I
authors.initials: KI
authors.lastname: Hardcastle
authors.forename: Jake D
authors.initials: JD
authors.lastname: Soper
mesh_terms: D004563:Electrochemistry; D004578:Electron Spin Resonance Spectroscopy / Q000379:methods; D006860:Hydrogen Bonding; D007700:Kinetics; D017895:Manganese Compounds / Q000737:chemistry*; D008958:Models, Molecular; D009942:Organometallic Compounds / Q000737:chemistry*; D010100:Oxygen / Q000737:chemistry*
chemical_list: D017895:Manganese Compounds; D009942:Organometallic Compounds; D010100:Oxygen