ISSN:
1573-1111
Keywords:
Crystal structure
;
disorder
;
ethylenediamine
;
inclusion complex
;
layered structure
;
tetracyanonickelate
;
twinning crystals
;
zinc
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract The crystal structure of [Zn(en)2- (NC)2Ni(CN)2 Zn(en)][Ni(CN)4]· 3 H2O consists of infinite positively charged wave-shaped layers of composition [Zn(en)2-(NC)2Ni(CN)2- Zn(en)] n 2n+ with the [Ni(CN)4]2− anions and water molecules included between them. Both Ni atoms exhibit square-planar coordination. The chelate bonded en (=ethylenediamine) and N-bonded cyano ligands around two independent zinc atoms form a deformed tetrahedron and a deformed octahedron, respectively. Yellow needles of the complex belong to the orthorhombic space groupPbcm witha = 6.977(1),b = 25.407(4),c = 14.876(2)Å,Z = 4,D m = 1.74(1) g cm−3 andD c = 1.739 g cm−3. The structure was refined toR = 6.31 %.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01041368
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