Acta Cryst. (2008). E64, m1400  [ doi:10.1107/S1600536808032558 ]

catena-Poly[[bis(3,5-dicarboxybenzoato)cobalt(II)]--4,4'-bipyridine]

C.-S. Ling and Q.-X. Han

Abstract: In the title compound, [Co(C₉H₅O₆)₂(C₁₀H₈N₂)]_n, the asymmetric unit consists of one Co²⁺ ion with site symmetry 2, one mono-deprotonated 1,3,5-benzenetricarboxylic acid anion and one-half of a 4,4'-bipyridine (4,4'-bipy) molecule, in which two N and two C atoms have site symmetry 2. In the crystal structure, the Co²⁺ centre is coordinated by four O atoms from two bidentate carboxylate groups of two anions and two N atoms of two 4,4'-bipy molecules, resulting in infinite chains propagating in [010]. The cobalt coordination is distorted trans-CoO₄N₂ octahedral and interchain O-HO hydrogen bonds complete the structure.

Online 15 October 2008

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