Acta Cryst. (2012). E68, m1484-m1485
[ doi:10.1107/S1600536812046041 ]

Poly[[-aqua-diaquabis(-furan-2,5-dicarboxylato-²O²:O⁵)bis(1,10-phenanthroline-²N,N')dicopper(II)] N,N-dimethylformamide monosolvate]

Y.-F. Li, X.-L. Qin, Y. Xu, Y.-P. Yuan and W.-Y. Gao

Abstract: The asymmetric unit of the title compound, {[Cu₂(C₆H₂O₅)₂(C₁₂H₈N₂)₂(H₂O)₃]·C₃H₇NO}_n, contains two Cu^II atoms, two furan-2,5-dicarboxylate (L) ligands, two 1,10-phenanthroline (phen) ligands, three coordinating water molecules and one N,N-dimethylformamide solvent molecule. Each Cu^II atom is coordinated by two N atoms from one phen ligand, two O atoms from two L ligands and two water molecules in a distorted octahedral geometry. The main difference between the environments of the two independent Cu atoms is in the Cu-O_water distances, which are 2.415 (2) and 2.639 (2) Å for one Cu^II atom and 2.3560 (19) and 2.911 (4) Å for the other. Ligands L and one independent water molecule bridge the Cu^II atoms, forming corrugated polymeric layers parallel to the ab plane. Intermolecular O-HO and C-HO hydrogen bonds consolidate the crystal packing.

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