基于2-氯-6-甲基苯甲酸和N-甲基咪唑铜(Ⅱ)配合物的合成、晶体结构和电化学性能(英文) |
Synthesis, Crystal Structure, Electrochemical Studies of Copper(Ⅱ) Complex with 2-Chloro-6-methylbenzoic Acid and N-Methylimidazole |
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摘要: 合成了标题配合物Cu(Cmba)2(Mim)2(Cmba为2-氯-6-甲基苯甲酸阴离子,Mim为N-甲基咪唑),并用X射线单晶衍射仪测定了其晶体结构。晶体属单斜晶系,P21/n空间群,晶胞参数为:a=0.738 9(15) nm,b=2.137 9(4) nm,c=0.815 0(16) nm,β=112.41(3)°,V=1.190 2(4) nm3,Z=2,Dcc=1.582 g·cm-3。最后精修结果为:R1=0.068 2,wR2=0.174 0。在配合物结构中每个Cu(Ⅱ)原子分别与来自2个羧酸根离子中的2个氧原子、2个N-甲基咪唑分子中的2个N原子进行配位,形成了1个平面四边形结构。电化学研究显示配合物中的Cu2+/Cu+对的氧化还原是一个准可逆的过程。 |
关键词: 铜(Ⅱ)配合物 N-甲基咪唑 晶体结构 循环伏安法 |
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Abstract: The title complex Cu(Cmba)2(Mim)2(Cmba=2-Chloro-6-methylbenzoic anion, Mim=N-Methylimdazole) has been synthesized and structurally characterized by X-ray single crystal diffractometry. The complex crystallizes in monoclinic system, P21/n space group with the cell parameters of a=0.738 9(15) nm, b=2.137 9(4) nm, c=0.815 0(16) nm, β=112.41(3)°, V=1.190 2(4) nm3, Z=2, and Dc=1.582 g·cm-3, the final R1=0.068 2, wR2=0.174 0. In the structure of the complex each Cu(Ⅱ) ion is coordinated by two O atoms from two carboxylate anions and two N atoms from two Mim molecules in a square-planar geometry. The electrochemical studies reveal that redox of Cu2+/Cu+ in the complex is a quasi-reversible process. CCDC: 778482. |
Keywords: copper(Ⅱ) complex N-Methylimdazole crystal structure cyclic voltammetry |
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邓月义,刘法谦,刘保成.基于2-氯-6-甲基苯甲酸和N-甲基咪唑铜(Ⅱ)配合物的合成、晶体结构和电化学性能(英文)[J].无机化学学报,2010,26(11):1944-1948. |
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