Abstract
Two metal-organic coordination polymers (MOCPs) [Zn(3-bptzh)(BDC)] (1) and [Zn(4-bptzh)(BDC)] (2) were prepared by hydrothermal reactions of zinc(II) chloride with H2BDC (H2BDC = 1,3-benzenedicarboxylic acid) and two bis(pyridyl-tetrazolyl) ligands (3-bptzh = 1,4-bis(5-(3-pyridyl)tetrazolyl)hexane, 4-bptzh = 1,4-bis(5-(4-pyridyl)tetrazolyl)hexane). They were structurally characterized by single crystal X-ray diffraction, infrared spectroscopy (IR) and powder X-ray diffraction (PXRD). The 3-bptzh and 4-bptzh were firstly introduced into the metal-dicarboxylate synthetic systems. Complex 1 shows a 2D polymeric layer containing the [Zn(BDC)]n ladder-like chain and [Zn(3-bptzh)]n zigzag chain, representing a 3,5-connected {42.6.86.12}{42.6} topology. Complex 2 is a 3-fold interpenetrating network based on the 3,5-connected {42.52.65.7}{42.6} topological 2D framework including the [Zn(BDC)]n ladder-like chain and [Zn(4-bptzh)]n helical chain. The fluorescent behaviors and dye adsorption properties of complexes 1 and 2 have been investigated.
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