Crystal structure of catena-poly[calcium-di-μ-benzoato-κO,O′:O-μ-(dimethyl sulfoxide)-κO:O]

In the title complex, [Ca(CHO)(CHOS)], the Ca ion (site symmetry m.) is surrounded by eight O atoms, six from two bridging-chelating tridentate benzoate carboxyl groups and two from a bridging dimethyl sulfoxide molecule (point group symmetry m.), giving an irregular coordination geometry [Ca-O bond length range = 2.345 (2)-2.524 (2) Å]. One-dimensional coordination complex chains extending parallel to c are generated in which the triply μ-Obridged Ca cations are separated by 3.6401 (5) Å. In the crystal, weak intrachain C-H⋯π hydrogen bonds are present between the methyl H atoms of the dimethyl sulfoxide molecules as donors and the aromatic rings as acceptors [C-H⋯Cg = 3.790 (4) Å].