Reactions of Tetrabromocatecholatomanganese(III) Complexes with Dioxygen
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New five- and six-coordinate complexes containing the [MnIII(Br4cat)2]− core (Br4cat2− = tetrabromo-1,2-catecholate) have been prepared. Homoleptic [MnIII(Br4cat)3]3− reacts rapidly with O2 to produce tetrabromo-1,2-benzoquinone (Br4bq). The [MnIII(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.
创建时间:
2008-03-17



