Synthesis and characterization of a novel cadmium(II) photoluminescent coordination polymer based on pyridine-2,3,5-tricarboxylic acid

Employing the multidentate ligand pyridine-2,3,5-tricarboxylic acid (H3PTC) as a bridge, a novel cadmium(II) coordination polymer [Cd3(PTC)2(bpy)(H2O)4] (1) was obtained and characterized by single crystal X-ray diffraction. The PTC3- ligand exhibits an interesting coordination mode to form a dense three-dimensional (3-D) framework of 1. The complex displays good thermal stability and strong photoluminescence in the blue region band. Thus it may serve as a potential candidate of thermally stable blue-light-emitting luminescent material.