Acta Cryst. (2009). E65, m90  [ doi:10.1107/S1600536808041913 ]

catena-Poly[[aqua(1,10-phenanthroline)cadmium(II)]--benzene-1,4-dicarboxylato]

H. Hu

Abstract: The title compound, [Cd(C₈H₄O₄)(C₁₂H₈N₂)(H₂O)]_n, is a new coordination polymer of benzene-1,4-dicarboxylate with cadmium(II) and 1,10-phenanthroline. The Cd^II ion is coordinated by two N atoms from the 1,10-phenanthroline molecule, three O atoms from two crystallographically independent benzene-1,4-dicarboxylate ligands and the O atom of a coordinated water molecule, forming a heavily distorted octahedron. The 1,10-phenanthroline ligand is approximately planar within 0.073 (4) Å. The two different benzene-1,4-dicarboxylate ligands each coordinate to two Cd^II ions in bidentate and monodentate modes, forming an infinite zigzag chain. Adjacent chains are packed tightly by strong - interactions [centroid-centroid distances = 3.851 (2) and 3.859 (2) Å] between the aromatic rings of the benzene-1,4-dicarboxylate ligand and the 1,10-phenanthroline of a neighboring chain, forming a sheet parallel to (011). Different sheets are linked together via O-HO hydrogen bonds between the coordinated water molecules and the O atoms of the carboxylate groups, forming a three-dimensional network.

Online 17 December 2008

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