Synthesis, Characterization and Photoluminescent Property of a Trinucleated Cadmium (II) Coordination Polymer Involving In Situ Ligand Reaction

A novel two-dimensional cadmium complex (Cd3(pzta)2(l-Cl)4H2O)2)n (1) has been synthesized hydrothermally by the reaction of pyrazine carbonitrile and sodium azide in the presence of cadmium(II) chloride as Lewis acid catalyst. Complex 1 was characterized by ele- mental analysis, thermal gravimetric analysis, IR spec- troscopy and single-crystal X-ray diffraction. Complex 1 crystallizes in triclinic crystal system, having the P 1 space group, which by utilizing hydrogen-bonding extends the molecular complex into 3D hydrogen-bonded metallo- supramolecular networks. It has been shown that N-H-O hydrogen bond based on R 2 (26) and R 2 (12) supramolec- ular synthons can be relied upon as effective tools for the assembly and organization of hexa-coordinated complex. Furthermore, compound 1 shows strong photolumines- cence properties at room temperature in solid state.