Acta Cryst. (2007). E63, m204-m206  [ doi:10.1107/S1600536806052743 ]

catena-Poly[[diaquacopper(II)]--pyridine-2,4-dicarboxylato-³N,O²:O⁴]

L.-B. Wang, Y.-R. Pan, P.-Y. Zhan, Y.-L. Niu and G.-Q. Zhang

Abstract: In the title polymer, [Cu(C₇H₃NO₄)(H₂O)₂]_n, the Cu^II ion is pentacoordinated and exhibits a distorted square-pyramidal environment formed by one N atom and two O atoms from pyridine-2,4-dicarboxylate ligands and two O atoms from coordinated water molecules. Each pyridine-2,4-dicarboxylate ligand bridges two Cu^II ions, to generate an infinite zigzag chain. Adjacent chains are linked by O-HO hydrogen bonds, forming a three-dimensional network.

Online 15 December 2006

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