Acta Cryst. (2006). E62, m2039-m2040  [ doi:10.1107/S1600536806029928 ]

catena-Poly[[aqua(-5-carboxyimidazole-4-carboxylato-⁴N³,O⁴:N¹,O⁵)zinc(II)] hemihydrate]

X.-F. Lin

Abstract: The title compound, {[Zn(HIDC)(H₂O)]·0.5H₂O}_n (HIDC^2- is the imidazole-4,5-dicarboxylate dianion, C₅H₂N₂O₄), exists as a one-dimensional coordination polymer formed by HIDC^2- ligands bridging Zn^II atoms, with a ZnZn separation of 6.156 (2) Å. The Zn^II ion exists in a distorted square-pyramidal coordination, involving two N and two O atoms from two symmetry-related bidentate HIDC^2- groups, and one water molecule.

Online 4 August 2006

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