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.

中文翻译：

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基于两种异构柔性双（吡啶基-四唑基）配体的两种 Zn(II) 配位聚合物：合成、结构和性能

摘要 通过氯化锌 (II) 的水热反应制备了两种金属有机配位聚合物 (MOCPs) [Zn(3-bptzh)(BDC)] (1) 和 [Zn(4-bptzh)(BDC)] (2)使用 H2BDC（H2BDC = 1,3-苯二甲酸）和两个双（吡啶基-四唑基）配体（3-bptzh = 1,4-双（5-（3-吡啶基）四唑基）己烷，4-bptzh = 1,4 -双(5-(4-吡啶基)四唑基)己烷)。通过单晶 X 射线衍射、红外光谱 (IR) 和粉末 X 射线衍射 (PXRD) 对其结构进行了表征。3-bptzh和4-bptzh首先被引入到金属-二羧酸盐合成体系中。复合物 1 显示包含 [Zn(BDC)]n 梯状链和 [Zn(3-bptzh)]n 之字形链的 2D 聚合物层，代表 3,5-连接的 {42.6.86.12}{42.6} 拓扑。Complex 2 是一个基于 3,5-connected {42.52.65.7}{42. 6} 拓扑二维框架，包括 [Zn(BDC)]n 梯状链和 [Zn(4-bptzh)]n 螺旋链。研究了配合物 1 和 2 的荧光行为和染料吸附性能。