A CdSO4-like 3D Framework Constructed from Benzophenone-2,4'-dicarboxylic Acid and 1,4-Bis(1,2,4-triazol-1-ylmethyl)-benzene: Synthesis, Structure and Physical Properties

In conclusion, we have successfully synthesized a new cadmium(II) coordination polymer based on benzophenone-2,4'-dicarboxylic acid and 1,4-bis(1,2,4-triazol-1-ylmethyl)-benzene, which is characterized by IR, elemental analysis, thermal analysis and single-crystal X-ray diffraction. The crystal structure of complex 1 shows a novel three-dimensional framework with 4-connected 3D CdSO4 topology. In addition, complex 1 exhibits strong fluorescent emissions in the solid state at room temperature. It is well known that the structure of the coordination polymer is mainly influenced by some factors such as temperature, the neutral ligands, the organic anions, the metal atoms, and so on. Among these factors, the organic ligand is the key factor that influences the construction of coordination polymer. Up to now, a number of symmetrical V-shaped aromatic polycarboxylic derivatives, such as 4,4'-oxybis-(benzoic acid), 4,4'-sulfonyldibenzoic acid, benzophenone-4,4'-dicarboxylic acid, 2,2-Bis(4-carboxyphenyl)hexafluoro-propane, and so on, have been extensively used to prepare coordination polymers