Acta Cryst. (2005). E61, m1092-m1094  [ doi:10.1107/S1600536805012572 ]

catena-Poly[[triaquacadmium(II)]--4-carboxylatophenoxyacetato-⁴O,O':O'',O''']

S. Gao, J.-W. Liu, L.-H. Huo and J.-G. Zhao

Abstract: In the title coordination polymer, [Cd(4-CPOA)(H₂O)₃]_n (where 4-CPOA^2- is the 4-carboxylatophenoxyacetate dianion, C₉H₆O₅), the Cd^II ion is seven-coordinate, involving four O atoms of two different 4-CPOA^2- ligands and three water molecules, arranged in a pentagonal-bipyramidal geometry. Adjacent Cd^II ions are linked by the 4-CPOA^2- groups in bidentate mode, giving rise to a zigzag chain with a closest CdCd distance of 10.310 (5) Å. The chains are further linked by O-HO hydrogen bonds to form a supramolecular three-dimensional network.

Online 14 May 2005

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