Acta Cryst. (2004). E60, m1869-m1871  [ doi:10.1107/S1600536804027461 ]

catena-Poly[[bis(ethylenediamine-²N,N')copper(II)]-₃-1,2-dicyanoethylenedithiolato-⁴N:S,S':N'-[(1,2-dicyanoethylenedithiolato-²S,S')cuprate(II)]]

A.-Y. Fu, D.-Q. Wang and D.-Z. Sun

Abstract: The title complex, [Cu₂(C₄N₂S₂)₂(C₂H₈N₂)₂]_n, consists of centrosymmetric [Cu(C₄N₂S₂)₂]^2- anions and [Cu(C₂H₈N₂)₂]²⁺ cations. The Cu^II atom in each anion shows a slightly distorted square-planar coordination, comprising four S-atom donors from two chelating 2,3-dimercaptobutenedinitrile ligands. The Cu^II atom in the cation is six-coordinated by four N-atom donors from two ethylenediamine ligands and two N-atom donors from 2,3-dimercaptobutenedinitrile, and has an elongated octahedral environment. The asymmetric unit contains one cation and two half-anions. The cations and anions are connected by Cu-N (nitrile) bonds to form a one-dimensional chain along the a axis. The crystal structure is stabilized by hydrogen bonds of the types N-HN and N-HS, forming a three-dimensional network.

Online 20 November 2004

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