Synthesis, crystal structure, and properties of a three-dimensional coordination polymer [Cd(PMP)2] n

A new Cd(II) coordination polymer, [Cd(PMP)(2)] (n) (1) [PMP = 1-phenyl-3-methyl-5-pyrazolone], has been synthesized by the reaction of Cd(CH3COO)(2)center dot 2H(2)O with PMP and characterized by elemental analysis, IR spectrum, fluorescence spectrum, UV-vis spectrum, TG-DTA, and electrochemical analysis. Single crystal X-ray diffraction reveals that the complex has a three-dimensional network. Each PMP acts as bidentate bridging ligand and each Cd(II) center is surrounded by two O atoms and two N atoms from four different PMP ligands to form distorted tetrahedral coordination geometry. The photoluminescence study shows the complex exhibited strong solid state blue fluorescent emission at room temperature, and the TG-DTA analysis demonstrated that it has highly thermal stability. Furthermore, the electrochemical property of the complex has been investigated for the first time in DMF by cyclic voltammetry, and the results showed that it has an irreversible process.