With the rapid development of metal-organic frameworks (MOFs), a variety of MOFs and their derivatives have been synthesized and reported in recent years. Commonly, multifunctional aromatic polycarboxylic acids and nitrogen-containing ligands are employed to construct MOFs with fascinating structures. 4,4',4''-(1,3,5-Triazine-2,4,6-triyl)tribenzoic acid (H3TATB) and the bidentate nitrogen-containing ligand 1,3-bis[(imidazol-1-yl)methyl]benzene (bib) were selected to prepare a novel ZnII-MOF under solvothermal conditions, namely poly[[tris{μ-1,3-bis[(imidazol-1-yl)methyl]benzene}bis[μ3-4,4',4''-(1,3,5-triazine-2,4,6-triyl)tribenzoato]trizinc(II)] dimethylformamide disolvate trihydrate], {[Zn3(C24H12N3O6)2(C14H14N4)3]·2C3H7NO·3H2O}n (1). The structure of 1 was characterized by single-crystal X-ray diffraction, IR spectroscopy and powder X-ray diffraction. The properties of 1 were investigated by thermogravimetric and fluorescence analysis. Single-crystal X-ray diffraction shows that 1 belongs to the monoclinic space group Pc. The asymmetric unit contains three crystallographically independent ZnII centres, two 4,4',4''-(1,3,5-triazine-2,4,6-triyl)tribenzoate (TATB3-) anions, three complete bib ligands, one and a half free dimethylformamide molecules and three guest water molecules. Each ZnII centre is four-coordinated and displays a distorted tetrahedral coordination geometry. The ZnII centres are connected by TATB3- anions to form an angled ladder chain with large windows. Simultaneously, the bib ligands link ZnII centres to give a helical Zn-bib-Zn chain. Furthermore, adjacent ladders are bridged by Zn-bib-Zn chains to form a fascinating three-dimensional self-penetrated framework with the short Schläfli symbol 65·7·813·9·10. In addition, the luminescence properties of 1 in the solid state and the fluorescence sensing of metal ions in suspension were studied. Significantly, compound 1 shows potential application as a fluorescent sensor with sensing properties for Zr4+ and Cu2+ ions.

中文翻译：

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基于4,4'，4''-（1,3,5-三嗪-2,4,6-三基）三苯甲酸和1,3-双[的自渗透三维锌（II）配位框架（咪唑-1-基）甲基]苯配体：合成，结构和性质。

随着金属有机骨架（MOF）的快速发展，近年来已经合成并报道了多种MOF及其衍生物。通常，使用多功能芳族多元羧酸和含氮配体来构建具有迷人结构的MOF。4,4'，4''-（1,3,5-三嗪-2,4,6-三基）三苯甲酸（H3TATB）和双齿含氮配体1,3-双[（咪唑-1-基）]]]]]]]]]]]]]]]]]]]]]]]]]]]]] [] []] ，4'，4''-（（1,3,5-triazine-2,4,6-triyl）tribenzoato] trizinc（II）]二甲基甲酰胺二溶剂化物三水合物]，{[Zn3（C24H12N3O6）2（C14H14N4）3]· 2C3H7NO·3H2O} n（1）。1的结构通过单晶X射线衍射表征，红外光谱和粉末X射线衍射。通过热重分析和荧光分析研究了1的性质。单晶X射线衍射表明1属于单斜空间群Pc。该不对称单元包含三个晶体学独立的ZnII中心，两个4,4'，4''-（1,3,5-三嗪-2,4,6-三基）三苯甲酸酯（TATB3-）阴离子，三个完整的Bib配体，一个半自由的二甲基甲酰胺分子和三个客体水分子。ZnII的每个中心都是四坐标的，并显示变形的四面体坐标几何。ZnII中心通过TATB3-阴离子连接，形成带有大窗口的成角度的梯形链。同时，围嘴配体连接ZnII中心，形成螺旋Zn-bib-Zn链。此外，相邻的梯子由Zn-bib-Zn链桥接，形成一个引人入胜的三维自渗透框架，其短Schläfli符号为65·7·813·9·10。此外，研究了固态的1的发光特性和悬浮液中金属离子的荧光传感。值得注意的是，化合物1作为具有Zr4 +和Cu2 +离子感测特性的荧光传感器显示了潜在的应用前景。