Acta Cryst. (2008). E64, m91  [ doi:10.1107/S1600536807063738 ]

catena-Poly[[aquadipyridinecopper(II)]--fumarato]

D. Xie, J. Ye, Y. Lin and G. Ning

Abstract: The title compound, [Cu(C₄H₂O₄)(C₅H₅N)₂(H₂O)]_n, is a one-dimensional coordination polymer based on pyridine and fumarate ligands. Each Cu^II cation is coordinated by two carboxylate O atoms belonging to two fumarate anions, two N atoms from two pyridine molecules and one water molecule, in a square-based pyramidal geometry. Each fumarate anion bridges two Cu^II cations through the two carboxylate groups in a bis-monodentate fashion to form a one-dimensional polymeric chain along the c axis. Neighbouring chains are linked together to form a two-dimensional network parallel to the ac plane via hydrogen bonding interactions between uncoordinated carboxylate O atoms and coordinated water molecules of adjecent chains.

Online 6 December 2007

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