O<sub>2</sub> Activation and Aromatic Hydroxylation Performed by Diiron Complexes
作者:Stéphane Ménage、Jean-Baptiste Galey、Jacqueline Dumats、Georges Hussler、Michel Seité、Isabelle Gautier Luneau、Geneviève Chottard、Marc Fontecave
DOI:10.1021/ja981123a
日期:1998.12.1
N‘-diacetic acid)], the X-ray structure of the corresponding iron complex has been determined, revealing an original tetranuclear unit, Fe4O2(L1)4·10H2O, issued from the dimerization of two [Fe2O(L1)2] units linked by carboxylate bridges. In a solution containing water or acetate, the tetranuclear complex decomposed into dinuclear complexes, which proved to be able to react with hydrogen peroxide or dioxygen
已经合成了二铁氧代蛋白活性位点的化学模型。多齿配体是 EDTA 衍生物,它提供氮原子和羧酸根基团的平衡供应以及可氧化的苯基部分,从而模拟甲烷单加氧酶和附近底物位点中的铁配位。所有的二铁配合物都在溶液中通过 ESI-MS、光吸收和在某些情况下通过 1H NMR 进行了表征。在配体L1[L1 = (N,N'-双(3,4,5-三甲氧基苄基)乙二胺N,N'-二乙酸)]的情况下,相应铁配合物的X射线结构已确定,揭示了一个原始的四核单元 Fe4O2(L1)4·10H2O,它是由两个由羧酸桥连接的 [Fe2O(L1)2] 单元的二聚化产生的。在含有水或醋酸盐的溶液中,四核配合物分解成双核配合物,证明在抗坏血酸存在下能够与过氧化氢或双氧反应。最终产品是单核...