Acta Cryst. (2005). E61, m123-m125  [ doi:10.1107/S1600536804032520 ]

Polymeric diaquabis(₄-benzene-1,2,4-tricarboxylato)bis(2,2'-bipyridine)tricadmium(II)

X.-L. Wang, F.-C. Liu, J.-R. Li and S. W. Ng

Abstract: The benzene-1,2,4-tricarboxylate trianion in the polymeric title compound, [Cd₃(C₉H₃O₆)₂(C₁₀H₈N₂)₂(H₂O)₂]_n, uses the carboxylate groups in the 1,2-positions to chelate to a bipyridine-chelated Cd atom, which is simultaneously chelated by the 4-CO₂ group of an adjacent trianion. The O atoms of the 1,2-CO₂ groups that are not involved in chelation to the first Cd atom are each bonded to water-coordinated Cd atoms that lie on centres of inversion. The trianion links the Cd atoms to form a three-dimensional network structure, which is further consolidated by hydrogen bonds involving the water molecules.

Online 18 December 2004

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