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设计合成了5种新型双核铜配合物,用EA、IR、UVVis、XPS、EPR等进行了结构表征,并研究了这些Cu2配合物模拟双核铜单加氧酶多巴胺β羟化酶催化苯乙烯环氧化反应的活性.结果表明,这些配合物具有两种类型的结构:脱质子型Cu2LOH和非脱质子型[(Cu2H2LX)Y]Y(X=Y=Cl-、Br-;X=OH,Y=O2ClO-2),两类配合物可相互转化.非脱质子型配合物催化PhIO对苯乙烯环氧化反应的活性高于脱质子型,高价碘金属配合物PhIOCuCu可能是反应活性物种.
Five novel binuclear copper complexes were designed and synthesized. Their structures were characterized by EA, IR, UV-Vis, XPS and EPR. The Cu2 complex was also used to simulate the catalytic reaction of dinuclear copper monooxygenase Styrene epoxidation activity. The results show that these complexes have two types of structures: deprotonated Cu2LOH and non-deprotonated [(Cu2H2LX) Y] Y (X = Y = Cl-, Br-; X = OH, Y = O2ClO-2) , Two types of complexes can be transformed into each other. The activity of PhIO on the epoxidation of styrene was higher than that of deprotonated type on the basis of non-deprotonated complexes. PhIO-CuCu, a complex of high-valent iodine, may be a reactive species.