Flexible bis(pyridyl-tetrazole) ligand induced ring-containing metal-organic coordination polymers: Synthesis, structures and properties
Abstract
Three coordination polymers (CPs), [Co(3-bptzp)(BDC)] (1), [Zn(3-bptzp)(BDC)] (2) and [Cd(3-bptzp)(BDC)] (3) (3-bptzp = 1,4-bis(5-(3-pyridyl)tetrazolyl)propane, H2BDC = 1,3-benzenedicarboxylic acid), were synthesized under hydrothermal conditions. The coordination polymers were structurally characterized by single crystal X-ray diffraction, infrared spectroscopy (IR), elemental analyses, and powder X-ray diffraction (PXRD). Complexes 1-3 represent the first examples of CPs based on the flexible bis(pyridyl-tetrazole) 3-bptzp. Structure analyses reveal that 1-3 are 1D ring-containing polymeric chains. For 2 and 3, adjacent 1D chains are extended to 2D supramolecular networks by hydrogen bonding. Dye adsorption properties of 1-3, electrochemical properties of 1, and fluorescent sensing behaviors of 2 and 3 have also been investigated.
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