Hydrothermal Synthesis, Crystal Structure and Properties of a 1D Metal-organic Coordination Polymer [Cd(pztmb)2(H2O)2]n

Abstract

Hydrothermal reaction of Cd(NO3)2 · 4H2O with a flexible asymmetrical bridging ligand, 4-(2- pyrazinylthiomethyl)benzoic acid (Hpztmb), at 120 °C yielded a novel one-dimensional Cd(II) coordination polymer [Cd(pztmb)2(H2O)2]n (1), which has been characterized by IR spectroscopy, elemental analysis, thermogravimetry, and X-ray crystallography. The metal-organic chain of the complex is held together with its neighbors via O-H· · ·O hydrogen bonds and face-to-face π-π interactions leading to a three-dimensional supramolecular network. Compound 1 exhibits a fluorescence emission around 396 nm