Poly[tetraaquadi-μ4-oxalato-potassiumytterbium(III)]

Abstract

In the title compound, [KYb(C2O4)2(H2O)4]n, the YbIII ion lies on a site of overline{4} symmetry in a dodecahedral environment defined by eight O atoms from four oxalate ligands. The K atom lies on a different overline{4} axis and is coordinated by four O atoms from four oxalate ligands and four water O atoms. The oxalate ligand has an inversion center at the mid-point of the C—C bond. The metal ions are linked by the oxalate ligands into a three-dimensional framework. O—H...O hydrogen bonding is present in the crystal structure.