Acta Cryst. (2007). E63, m2373  [ doi:10.1107/S1600536807040275 ]

Poly[[aqua(2,2-bipyridine)(₃-pyridine-3,4-dicarboxylato)cobalt(II)] monohydrate]

Z.-F. Li, S.-W. Wang, Q. Zhang and X.-J. Yu

Abstract: The asymmetric unit of the title compound, {[Co(C₇H₃NO₄)(C₁₀H₈N₂)(H₂O)]·H₂O}_n, contains one Co^II cation chelated by one 2,2'-bipyridine ligand and further coordinated by two monodentate carboxylate groups and one N atom belonging to three symmetry-related pyridine-3,4-dicarboxylate ligands (acting in a ₃-N:O:O' mode), and one water molecule. The result is a CoO₃N₃ polyhedron which exhibits an octahedral geometry. Each two neighboring Co^II cations are bridged by two independent pyridine-3,4-dicarboxylate ligands, which are further coordinated to a third and fourth Co^II cation though the pyridine N atom to form corrugated layers parallel to the (110) plane. There are two medium-strong intramolecular hydrogen bonds involving the coordinated water molecule and two intermolecular hydrogen bonds involving the solvent water molecule, linking layers into a three-dimensional packing network.

Online 17 August 2007

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