Acta Cryst. (2009). E65, m1165  [ doi:10.1107/S160053680903428X ]

Poly[[₂-1,4-bis(imidazol-1-ylmethyl)benzene]bis(₄-cyclohexane-1,4-dicarboxylato)dicobalt(II)]

Q.-D. Yu, D.-J. Sun and E. R. T. Tiekink

Abstract: In the title compound, [Co₂(C₈H₁₀O₄)₂(C₁₄H₁₄N₄)]_n, the two Co^II atoms are both five-coordinated by four carboxylate O atoms, derived from two different cyclohexane-1,4-dicarboxylate (chdc) ligands, and an N atom, derived from one end of a 1,4-bis(imidazol-1-ylmethyl)benzene molecule (1,4-bix), in a distorted square-pyramidal environment. Each end of the chdc ligand links pairs of Co^II atoms into a paddle-wheel assembly, i.e. Co₂(O₂CR')₄; these are connected into rows because of the bridging nature of the chdc ligands, and the rows are further connected into a two-dimensional layer through the 1,4-bix ligands. The 1,4-bix ligand, which is disposed about a centre of inversion, is disorderd. Two positions were discerned for the -CH₂(C₆H₄)CH₂- residue, with the major component having a site-occupancy factor of 0.512 (9).

Online 5 September 2009

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