Acta Cryst. (2007). E63, m2938-m2939  [ doi:10.1107/S1600536807054669 ]

Poly[[[bis[(2,2'-bipyridine-²N,N')cadmium(II)]-bis[₃-3-(4-carboxylatophenoxy)propionato-⁵O,O':O':O'',O''']] 4-hydroxybenzoic acid monohydrate]

L.-L. Kong, S. Gao, L.-H. Huo and S. W. Ng

Abstract: The 3-(4-carboxylatophenoxy)propionate dianion in the title compound, [Cd₂(C₁₀H₈O₅)₂(C₁₀H₈N₂)₂]·C₇H₆O₃·H₂O, links adjacent metal atoms into a chain, the dianion chelating through both O atoms of its two -CO₂^- end groups. One of the carboxylate O atoms (that belonging to the aliphatic carboxylate end) engages in interchain coordination, linking two chains into a ribbon. The ribbons are linked to the disordered water molecule and 4-hydroxybenzoic acid by O-HO hydrogen bonds, further consolidating the ribbon motif. The Cd^II atom exists in a seven-coordinate CdN₂O₅ enviroment that approximates to a monocapped octahedron. The dinuclear repeat unit is centrosymmetric.

Online 9 November 2007

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