Acta Cryst. (2009). E65, m629  [ doi:10.1107/S1600536809016882 ]

Poly[[₄-tartrato-cadmium(II)] 0.167-hydrate]

L.-Z. Zhao, P. Li, B.-L. Cao and S. W. Ng

Abstract: The title compound, {[Cd(C₄H₄O₆)]·0.167H₂O}_n, adopts a three-dimensional network structure in which each Cd^II ion is chelated by two pairs of carboxylate and hydroxyl O atoms from two tartrate anions, and is additionally linked to two O atoms of two carboxylate groups that are not involved in chelation. The asymmetric unit has four independent cadmium atoms, two of which lie on special positions of 2 site symmetry. The tartrate anions all lie on general positions. All hydroxyl groups are engaged in O-HO hydrogen-bonds, one of which is also bifurcated. The non-coordinating water molecule is situated on a site with half-occupation.

Online 14 May 2009

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