Two Dimensional Cadmium (II) Coordination Polymer Constructed from Flexible Bis(triazole) Ligand: Synthesis, Structure and Fluorescence Property

The new coordination polymer named, {[Cd(L)(HBTC)(H2O)]center dot H2O}(n) (L=1,2-bis(1,2,4-triazol-1-ylmethyl)benzene, H3BTC =1,3,5-benzenetricarboxylic acid) has been synthesized hydrothermally and characterized by elemental analysis, IR spectroscopy, themogravimetric (TG) analysis and single-crystal X-ray diffraction analysis. The cadmium center is six coordinated with three Ocoo- atoms from two different HBTC2- dianions and one water molecule locate in the equatorial positions, while apical sites are occupied by two N atoms from two distinct L ligands in a distorted octahedral geometry. The structural analysis shows that the complex possesses a two-dimensional 2D (4,4) layer structure, and displays a three-dimensional (3D) supramolecular structure via multiple intermolecular O-H...O hydrogen bonds. The fluorescence property of the complex also has been studied. CCDC: 917952.