Poly[tetra­kis­(μ-benzene-1,2-dicarboxyl­ato)di-μ-formato-penta­strontium(II)]

The asymmetric unit of the title complex, [Sr5(C8H4O4)4(HCO2)2]n, contains three independent SrII ions, one of which is located on an inversion center. In the crystal, the SrII ions (coordination numbers 8, 9 and 12) are connected by two crystallographically distinct benzene-1,2-dicarboxyl­ate ligands and one formate ligand, forming a two-dimensional polymer parallel to (001).