| 基于V型配体的三个荧光Zn-MOF对水溶液中2，4，6-三硝基苯酚和Fe3+的荧光传感 |
| Three Luminescent Zn-MOFs Based on V-Shaped Ligands for Fluorescence Sensing of 2,4,6-Trinitrophenol and Fe3+ in Aqueous Solution |
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| 摘要: 在溶剂热条件下，合成了3个基于V型配体的Zn(Ⅱ)金属有机骨架：{[Zn2(BIDPS)2(OBA)2]·DMA}n(1)、{[Zn (BIDPT)(PA)]·DMF}n(2)和{[Zn (BIDPS)(PA)(H2O)2]·2H2O}n(3)(BIDPS=4，4'-二(1-咪唑基)苯砜，H2OBA=4，4'-二苯醚二甲酸，H2PA=帕莫酸，BIDPT=4，4'-二(1-咪唑基)苯硫醚)。利用X射线单晶衍射、红外光谱、元素分析、热重分析、X射线粉末衍射对其结构进行了表征。配合物1具有二重穿插的三维cds拓扑网络结构。配合物2为二维(4，4)层状结构，层与层之间通过互锁形成2D→3D的三维金属有机骨架。配合物3具有一维链状结构，一维链通过分子内和分子间氢键连接，形成三维超分子结构。荧光研究表明，配合物1~3可以在pH=4~10的水溶液中稳定存在，且在水中具有较强的发光性能，可作为检测2，4，6-三硝基苯酚和Fe3+的发光传感器，具有较高的灵敏度和选择性。 |
| 关键词: 配位聚合物 晶体结构 氢键 荧光 |
| 基金项目: 安徽省高校优秀人才支持计划重点项目(No.gxyqZD2020042)和安徽高校省级自然科学研究资金项目(No.KJHS2019B03)资助。 |
| Abstract: Three Zn(Ⅱ)-based metal-organic frameworks with V-shaped ligands, namely {[Zn2(BIDPS)2(OBA)2]·DMA}n (1), {[Zn(BIDPT)(PA)]·DMF}n (2), and {[Zn(BIDPS)(PA)(H2O)2]·2H2O}n (3) (BIDPS =4,4'-bis(imidazol-l-yl)-phenyl sulphone, H2OBA=4,4'-oxybisbenzoic acid, H2PA=pamoic acid, BIDPT=4,4'-bis(imidazol-l-yl)diphenyl thioether), have been hydrothermally synthesized and characterized by single X-ray diffraction, IR spectroscopy, thermogravimetric analysis, and powder X-ray diffraction. Compound 1 shows a two-fold 3D network with cds topology. Compound 2 is a 2D (4,4) layer network and shows a 2D → 3D parallel-parallel polycatenation framework. Compound 3 exhibits an infinite chain, and such 1D chains are further interlinked into a 3D supramolecular structure via intermolecular and intramolecular hydrogen bonds. Compounds 1-3 could stably exist in aqueous solutions with pH=4-10. Compounds 1-3 demonstrated strong luminescence in aqueous solution, and fluorescence studies show that 1-3 could detect 2, 4, 6-trinitrophenol and Fe3+ with high sensitivity and selectivity by luminescent sensing. |
| Keywords: coordination polymer crystal structure hydrogen bonding luminescence |
| 投稿时间：2022-04-27 修订日期：2022-09-01 |
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| 徐涵,潘兆瑞,亓昭鹏,孙洁.基于V型配体的三个荧光Zn-MOF对水溶液中2，4，6-三硝基苯酚和Fe3+的荧光传感[J].无机化学学报,2022,38(12):2479-2490. |
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