Acta Cryst. (2007). E63, m2244  [ doi:10.1107/S1600536807036744 ]

Diaquabis(5-carboxy-2-methyl-1H-imidazole-4-carboxylato-²N³,O⁴)cobalt(II)

C.-B. Liu, X.-L. Nie and H.-L. Wen

Abstract: The Co atom in the title compound, [Co(C₆H₅N₂O₄)₂(H₂O)₂], is located on an inversion centre and exhibits a distorted octahedral geometry. It is trans coordinated by two N,O-bidentate 5-carboxy-2-methyl-1H-imidazole-4-carboxylate monoanionic ligands with two water molecules in the axial positions. Each ligand is stabilized by a strong, almost symmetrical, hydrogen bond. Intermolecular N-HO hydrogen bonds link the molecules into layers, which are further linked into a three-dimensional supramolecular framework through O-HO hydrogen-bonding interactions involving the water molecules.

Online 31 July 2007

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