A two-dimensional Cd(II) coordination polymer with 2,2'-(disulfanediyl)dibenzoate and 1,10-phenanthroline ligands.

In poly[[μ3-2,2′-(disulfane­diyl)dibenzo­ato-κ5O:O,O′:O′′,O′′′](1,10-phenanthroline-κ2N,N′)cadmium(II)], [Cd(C14H8O4S2)(C12H8N2)]n, the asymmetric unit contains one CdII cation, one 2,2′-(disulfane­diyl)dibenzoate anion (denoted dtdb2−) and one 1,10-phenanthroline ligand (denoted phen). Each CdII centre is seven-coordinated by five O atoms of bridging/chelating carboxyl­ate groups from three dtdb2− ligands and by two N atoms from one phen ligand, forming a distorted penta­gonal–bipyramidal geometry. The CdII cations are bridged by dtdb2− anions to give a two-dimensional (4,4) layer. The layers are stacked to generate a three-dimensional supra­molecular architecture via a combination of aromatic C—H⋯π and π–π inter­actions. The thermogravimetric and luminescence properties of this compound were also investigated.