Hydrothermal Synthesis of a Novel One-dimensional Cadmium-based Coordination Polymer for Effective Detection of Hazardous Chemicals

A novel one-dimensional coordination polymer, named as [Cd(ipa)(Hpzp)(H2O)]·2H2On (Cd-CP), (where ipa = isophthalic acid, Hpzp = 4-(1 H-Pyrazol-4-yl)pyridine), have been successfully synthesized by facile hydrothermal method. Single crystal X-ray diffraction (SC-XRD) demonstrate that the complex Cd-CP was crystallized in the P-1 space group of the triclinic crystal system. In addition, solid-state fluorescence spectroscopy showed that the complex Cd-CP has excellent luminescent properties. Further studies showed that complex Cd-CP could be used for the highly sensitive detection of chloroform, tetracycline hydrochloride (TCH) and oxytetracycline (OTC), with detection limit (LOD) of 0.21 µM for TCH and 0.14 µM for OTC, respectively. Finally, a rational fluorescence sensing mechanism was also scrutinized and proposed.