Acta Cryst. (2007). E63, m429-m430  [ doi:10.1107/S1600536806055437 ]

Poly[diaqua--oxalato-copper(II) monohydrate]

W.-Y. Wu and L.-X. Zhai

Abstract: The structure of the title compound, {[Cu(C₂O₄)(H₂O)₂]·H₂O}_n, may be described as a one-dimensional zigzag chain, constructed of alternating bis-bidentate-bridged Cu atoms and oxalate groups. Two thirds of the water molecules coordinate to Cu atoms, and the rest are present as uncoordinated solvent. Intermolecular O-HO hydrogen bonds link the molecules to form a three-dimensional supramolecular structure. The Cu atom and the uncoordinated water molecule lie on twofold rotation axes, and the oxalate ligand lies on an inversion centre.

Online 12 January 2007

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