Metal complexes with 2,2′-dipyridylamine as ligand:: Crystal structures of the complexes with CdX2 (X = Cl, Br, I) and CuCN

被引:11
|
作者
Pickardt, J [1 ]
Staub, B [1 ]
机构
[1] Tech Univ Berlin, Inst Anorgan & Analyt Chem, D-10623 Berlin, Germany
关键词
2,2 '-dipyridylamine complexes; cadmium halides; copper(I) cyanide; crystal structure;
D O I
10.1515/znb-1999-0306
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Reactions of 2,2'-dipyridylamine (dpyam) with cadmium halides yield crystals of [Cd(dpyam)(H2O)Cl-2] (1), [Cd(dpyam)Br-2] (2), and [Cd(dpyam)I-2] (3). With CuCl2 and KCN a complex [Cu(dpyam)CN]H2O (4) is obtained. Depending on the size of the halide ions the coordination changes from octahedral in 1 to trigonal bipyramidal in 2 and tetrahedral in 3. The coordination in 4 is trigonal. Due to the geometric strain imposed by the ligand all coordination polyhedra show significant distortions. 1 and 2 form dimers by halide bridges. With the exception of 3 all compounds form "supramolecular" structures via hydrogen bonds, e.g. chains or networks.
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页码:329 / 336
页数:8
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