Catena-Poly[[aqua-dioxidouranium(VI)]-μ3-4, 4′-oxydibenzoato]

Abstract

The title compound, [UO2(C14H8O 5)(H2O)]n , is a polymeric UO2 complex bridged by 4,4′-oxydibenzoate ligands. One carboxyl-ate group of the bridging ligand chelates a uranyl cation while the other carboxyl-ate group of the ligand bridges two other two uranyl cations, forming a double-chain polymeric structure. The central UVI atom is seven-coordin-ated in a distorted UO7 penta-gonal-bipyramidal geometry. In the crystal structure, O - H⋯O hydrogen bonding links the polymeric chains into a three-dimensional supra-molecular framework. Within the bridging ligand, the two benzene rings are oriented at a dihedral angle of 59.0 (2)°.