Catena-Poly[[diaquacadmium(II)]-μ-benzene-1,4-dioxyacetato-κ4O,O′:O′′,O′′′

Abstract

In the title coordination polymer {systematic name: catena-poly­[[di­aqua­cadmium(II)]-μ-p-phenyl­enebis­(oxy­acetato)-κ4O,O′:O′′,O′′′]), [Cd(C10H8O6)(H2O)2]n, the CdII atom displays a trigonal prismatic coordination geometry, involving four carboxyl O atoms from two different benzene-1,4-dioxy­acetate ligands and two water mol­ecules. The CdII atom and the benzene-1,4-dioxyacetate ligand lie on special positions with twofold rotation and inversion symmetry, respectively. Adjacent CdII ions are linked by carboxyl­ate groups with the tetradentate coordination mode, forming a one-dimensional chain structure with an adjacent Cd⋯Cd distance of 15.263 (5) A. These chains are further linked by O—H⋯O hydrogen bonds, forming a supramolecular network.