Synthesis, crystal structure and characterization of [bis{N,N′-bis(2-aminoethyl)propane-1,3-diamine}(μ-imidazolato-N,N′)dizinc(II)] triperchlorate

被引:5
作者
Zhu, HL
Tong, YX
Zhao, J
Duan, CY
Chen, XM [1 ]
Tang, WX
机构
[1] Zhongshan Univ, Sch Chem & Chem Engn, Guangzhou 510275, Peoples R China
[2] Nanjing Univ, Inst Coordinat Chem, State Key Lab Coordinat Chem, Nanjing 210093, Peoples R China
关键词
D O I
10.1071/CH99025
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The title compound [Zn-2(2,3,2-tet)(2)(Im)] (ClO4)(3) (C17H43Cl3N10O12Zn2, 2,3,2-tet = N,N'-bis(2-aminoethyl)propane-1,3-diamine, Im = imidazolate anion) consists of an imidazolate-N,N'-bridged binuclear cation and three perchlorate anions. The complex crystallizes in the monoclinic space group C2 with a 12.038(8), b 12.245(8), c 11.902(3) Angstrom, beta 108.00(5)degrees, V 1668.6(15) Angstrom(3). The coordination geometry at each zinc(II) centre is approximately square-pyramidal. The Zn ... Zn separation is 6.114(9) Angstrom. Cyclic voltammetry shows two irreversible cathodic waves at -1.00 and -1.08 V/s.c.e., which clearly indicates that coordination of the strong-field ligands provides significant stability to the zinc(II) centre in the title complex.
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页码:709 / 711
页数:3
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