Abstract Two Zn(II) coordination polymers, [Zn2(tib)2(BDC-Cl2)(HBDC-Cl2)2]·2H2O (1) and [Zn(tib)(BDC-Cl2)]·H2O (2), were synthesized by reaction of 1,3,5-tris(1-imidazolyl)benzene (tib) and 2,5-dichloroterephthalic acid (H2BDC-Cl2) with Zn2+ under solvothermal conditions. The results of X-ray single-crystal analysis show that 1 possesses a 1-D chain structure, while 2 exhibits a 2-D layer structure with {44·62} topology. Both display a 3-D supramolecular framework through hydrogen bonding interactions. Experimental results indicated that the ratio of solvent may regulate the structural formation of the polymers. 1 and 2 were further characterized by powder X-ray diffraction (PXRD), IR spectroscopy, thermogravimetric analysis (TGA), and elemental analysis. Notably, 1 and 2 possess the ability to identify chloroform by emitting specific fluorescence spectra. Both can detect carcinogens in dyes by the modified fluorescent signal of the compound in chloroform. Graphical Abstract

中文翻译：

---

由 1,3,5-三(1-咪唑基)苯和 2,5-二氯对苯二甲酸构成的两种 Zn(II) 配位聚合物的溶剂控制组装与氯仿中致癌染料的荧光识别

摘要 两种 Zn(II) 配位聚合物，[Zn2(tib)2(BDC-Cl2)(HBDC-Cl2)2]·2H2O (1) 和 [Zn(tib)(BDC-Cl2)]·H2O (2)，由 1,3,5-三(1-咪唑基)苯 (tib) 和 2,5-二氯对苯二甲酸 (H2BDC-Cl2) 与 Zn2+ 在溶剂热条件下反应合成。X射线单晶分析结果表明，1具有一维链状结构，而2则表现出具有{44·62}拓扑结构的二维层状结构。两者都通过氢键相互作用显示出 3-D 超分子框架。实验结果表明，溶剂的比例可以调节聚合物的结构形成。通过粉末X射线衍射(PXRD)、IR光谱、热重分析(TGA)和元素分析进一步表征1和2。尤其，1 和 2 具有通过发射特定荧光光谱来识别氯仿的能力。两者都可以通过化合物在氯仿中的修饰荧光信号检测染料中的致癌物。图形概要