Distrontium oxalate tetrahydroxidocuprate(II)

The crystal structure of distrontium oxalate tetrahydroxidocuprate(II) or poly[tetra-μ-hydroxido-μ 6 -oxalato-copperdistrontium], Sr 2 (C 2 O 4 )[Cu(OH) 4 ] or [Sr 2 Cu(C 2 O 4 )(OH) 4 ] n , has been determined in the triclinic space group P 1 . The asymmetric unit contains one Sr, one Cu, two hydroxide groups, and half of an oxalate anion. By application of inversion symmetry, a square-planar {Cu(OH) 4 } unit and a complete oxalate anion are generated. The structure consists of a three-dimensional framework of edge-sharing {SrO 4 (OH) 4 } polyhedra