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采用溶剂扩散法制备了锰(Ⅲ)的两个单核配合物[Mn(Miao)2(H2O)2]ClO4(1)和[Mn(Miao)2(DMF)2]ClO4(2)(HMiao=1-甲基-2-咪唑醛肟,DMF=N,N-二甲基甲酰胺)的晶体.X射线衍射单晶结构表明:两种配合物均属三斜晶系,空间群Pī,锰与配体形成变形的八面体结构.采用Gaussian 03W程序计算了HMiao配体的电荷密度,理论计算与实际配位形式完全吻合.测定了两种锰配合物在DMF溶液中的电化学性质,循环伏安法表明两配合物均存在较好的氧化还原性,其氧化还原峰分别为0.75和0.70V,-0.32和-0.50V,是Mn(Ⅲ)和Mn(Ⅱ)之间的相互转化.
Two mononuclear complexes of manganese (Ⅲ) [Mn (Miao) 2 (H2O) 2] ClO4 (1) and [Mn (Miao) 2 (DMF) 2] ClO4 (2) were prepared by solvent diffusion method = 1-methyl-2-imidazolidinone oxime, DMF = N, N-dimethylformamide) .The X-ray diffraction single crystal structure shows that the two complexes belong to triclinic system with space group Pī, Mn and Ligand form a modified octahedron structure.The charge density of HMiao ligand was calculated by Gaussian 03W program.The theoretical calculation is in good agreement with the actual coordination form.The electrochemical properties of two manganese complexes in DMF solution were determined, Cyclic voltammetry showed that both of the complexes exhibited good redox properties, with redox peaks of 0.75 and 0.70 V, -0.32 and -0.50 V, respectively, which were the interconversion between Mn (Ⅲ) and Mn (Ⅱ) .