The [tetra(pyridinioacetato)copper]2+ as a tridentate chelate to alkaline-eearth metal cation:: Crystal structure of [Cu2Ca2(C5H5NCH2CO2)10(H2O)3](ClO4)8•H2O

被引：4

作者：

Yang, YY ^{[1
]}

Huang, ZQ

Chen, XM

Ng, SW

机构：

[1] Sun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Peoples R China

[2] Univ Malaya, Inst Postgrad Studies, Kuala Lumpur, Malaysia

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 2003年 / 629卷 / 11期

关键词：

copper-calcium complex; tetranuclear complex; carboxylate groups; crystal structures;

D O I：

10.1002/zaac.200300149

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A tetranuclear copper-calcium complex of pyridinioacetate (C5H5N+CH2CO2-), namely [Cu2Ca2(C5H5NCH2CO2)(10)(H2O)(3)](ClO4)(8).H2O was synthesized and characterized by X-ray crystallography. The complex crystallizes in triclinic, P (1) over bar (No. 2), a = 15.658(2), b = 18.260(2), c 18.456(2) Angstrom, alpha = 91.552(2), beta = 94.004(3), gamma = 104.928(2)gammadegrees, V = 5081(1) Angstrom(3), Z = 2. In the crystal structure, a square-planar [Cu(C5H5NCH2CO2)(4)](2+) entity uses three of its four carboxylate groups to chelate to a calcium atom forming a [CuCa(C5H5NCH2CO2)(4)](4+) dinuclear subunit, and a pair of such dinuclear subunits are linked by the two remaining pyridinioacetate ligands through the calcium atoms to furnish a tetranuclear [Cu2Ca2 (C5H5NCH2CO2)(10)(H2O)(3)](8+) cation.

引用

页码：1901 / 1903

页数：3

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