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化学学报
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化学学报 ›› 2009, Vol. 67 ›› Issue (14): 1579-1584. 上一篇    下一篇

研究论文

1-甲基-2-咪唑醛肟锰(III)配合物的合成、晶体结构及电化学性质研究

丁 瑜*,a,b 夏彩芬a 胡宗球b 库宗军a
周环波a 李春莲a 高大顺a

  

  1. (a孝感学院化学与材料科学学院 孝感 432000)
    (b华中师范大学化学学院 武汉 430079)

  • 投稿日期:2008-11-04 修回日期:2009-02-26 发布日期:2009-07-28
  • 通讯作者: 丁瑜

Synthesis, Crystal Structure and Electrochemical Properties of Mn(III) Complexes with 1-Methylimidazole-2-aldoximate

Ding, Yu *,a,b Xia, Caifen a Hu, Zongqiu b Ku, Zongjun a
Zhou, Huanbo a Li, Chunlian a Gao, Dashun a
  

  1. (a School of Chemistry & Materials Science, Xiaogan University, Xiaogan 432000)
    (b College of Chemistry, Central China Normal University, Wuhan 430079)

  • Received:2008-11-04 Revised:2009-02-26 Published:2009-07-28
  • Contact: Ding, Yu

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被引次数

1

采用溶剂扩散法获得了锰(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，锰与配位原子形成稳定的八面体结构。采用Gaussian03W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。通过循环伏安法测定了两种锰配合物在DMF 溶液中的电化学性质。

关键词: 1-甲基-2-咪唑醛肟, 锰(III)配合物, Gaussian 03W程序, 电化学性质

The crystals of two manganese complexes [Mn(Miao)2(H2O)2]ClO4 (1) and [Mn(Miao)2- (DMF)2]ClO4 (2) [HMiao＝1-methylimidazole-2-aldoximate, DMF＝N,N-dimethylformamide] were obtained by solvent diffusion. X-ray crystallographic analyses show that the compounds crystallize in the triclinic system, space group Pī. Each Mn(III) and the coordination atoms form a slightly distorted octahedral geometry. The full-optimized molecular geometry of the HMiao ligand was calculated with Gaussian 03W program. The experimental coordinated forms of the Mn(III) in the crystals are similar to the theoretical analysis. The electrochemical properties were studied in DMF. Cyclic voltammetry exhibits redox waves at 0.75 and 0.70 V, －0.32 and －0.50 V (versus SCE) in DMF corresponding to the [MnIII]/[MnII] couples.

Key words: 1-methylimidazole-2-aldoximate, Mn(III) complex, Gaussian 03W program, electrochemical property