Acta Cryst. (2004). E60, m1982-m1984  [ doi:10.1107/S1600536804030806 ]

catena-Poly[[[diaquacobalt(II)]--tartrato-⁴O,O':O'',O'''] monohydrate]

D.-X. Li, D.-J. Xu and Y.-Z. Xu

Abstract: In the title Co^II polymeric complex bridged by tartrate dianions, {[Co(C₄H₄O₆)(H₂O)₂]·H₂O}_n, the Co^II atom is coordinated by two tartrate dianions and two water molecules to give a distorted octahedral geometry. The hydroxyl O atom and one O atom of each carboxyl group chelate to the Co^II atom, but the other O atom of this carboxyl group is uncoordinated. The polymeric chains are linked to each other via hydrogen bonds to form cavities which are filled with solvent water molecules.

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