Crystal Structures and Luminescent Probe Behaviors of Three-Dimensional Zn(II) Frameworks with Multicarboxylate and Tetradentate Imidazole-Containing Ligands
作者:Zhao-Feng Qiu、Shu-Man Zhao、Zou-Hong Xu、Yue Zhao、Zheng-Liang Wang、Wei-Yin Sun
DOI:10.1021/acs.cgd.1c00629
日期:2021.9.1
Three novel metal–organic frameworks (MOFs) [Zn2(tipe)(bpt)(H2bpt)]·MeOH·9H2O (1), [Zn2(tipe)(tpe)]·3MeOH·13H2O (2), and [Zn2(tipe)1.5(AIP)](NO3)2·7DMA·7H2O (3) (DMA = N,N-dimethylacetamide, MeOH = methanol) were synthesized by reactions of zinc(II) salt with organic ligands of 1,1,2,2-tetrakis(4-(imidazol-1-yl)phenyl)ethene (tipe) and biphenyl-3,4′,5-tricarboxylic acid (H3bpt), tetrakis(4-carboxyphenyl)ethene (H4tpe), or 5-aminoisophthalic acid (H2AIP). Crystal structural determination revealed that they are distinct three-dimensional (3D) frameworks with varied porous structures and topologies. Interestingly, MOFs 1 and 2 show strong luminescence in ethanol and DMF suspension and can be used as chemical sensors for detecting antibiotics and nitroaromatic compounds, respectively. In addition, MOF 3 can emit white light by encapsulating organic dye molecules into the voids of the framework.
三种新型金属有机骨架(MOF)[Zn2(tipe)(bpt)(H2bpt)]·MeOH·9H2O (1)、[Zn2(tipe)(tpe)]·3MeOH·13H2O (2) 和 [Zn2( tipe)1.5(AIP)](NO3)2·7DMA·7H2O (3) (DMA = N,N-二甲基乙酰胺, MeOH = 甲醇) 通过锌(II)盐与 1,1,2 有机配体反应合成,2-四(4-(咪唑-1-基)苯基)乙烯(tipe)和联苯-3,4',5-三羧酸(H3bpt)、四(4-羧基苯基)乙烯(H4tpe)或5-氨基间苯二甲酸(H2AIP)。晶体结构测定表明它们是独特的三维(3D)框架,具有不同的多孔结构和拓扑结构。有趣的是,MOFs 1和2在乙醇和DMF悬浮液中表现出强发光,可分别用作检测抗生素和硝基芳香族化合物的化学传感器。此外,MOF 3可以通过将有机染料分子封装到框架的空隙中来发射白光。