The title compound, [Cd(C9H9O2)2(C12H8N2)] n , was synthesized in a water-methanol solution and its crystal structure was determined by X-ray diffraction analysis. The Cd atoms are octa-hedrally coordinated by two N atoms from phenanthroline and four O atoms from four different 3,5-dimethyl-benzoate ions, completing the octa-hedral geometry. The O atoms of the carboxylate group coordinate to CdII in a bidentate bridging manner. The complex shows a one-dimensional chain structure of Cd atoms bridged by 3,5-dimethyl-benz...