Acta Cryst. (2009). E65, m184-m185  [ doi:10.1107/S1600536809000889 ]

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

Z. Wang, W. Han and Z. Liu

Abstract: A new cadmium(II) coordination polymer, {[Cd(C₈H₄O₄)(C₁₂H₈N₂)(H₂O)]·0.5C₈H₆O₄}_n, has been synthesized under hydrothermal conditions. The asymmetric unit contains one Cd^II atom, one benzene-1,4-dicarboxylate anion, one 1,10-phenanthroline ligand, one coordinated water molecule and half of an uncoordinated benzene-1,4-dicaboxylic acid solvent molecule. The Cd^II atom is in the centre of a monocapped distorted octahedron made up of four O atoms of two chelating benzene-1,4-dicarboxylate anions, one water O atom and two 1,10-phenanthroline N atoms. The metal centres are connected via bis-chelating benzene-1,4-dicarboxylate anions into a zigzag chain structure along [001]. These chains are further connected by O-HO hydrogen bonds between the water molecules and adjacent carboxylate O atoms. Additional O-HO hydrogen bonding between the uncoordinated benzene-1,4-dicaboxylic acid molecules along [010] consolidates the structure.

Online 14 January 2009

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