| 一种痕量监测2，4，6-三硝基苯酚的锌基配位聚合物荧光探针的构筑 |
| Design and synthesis of a Zn(Ⅱ)-based coordination polymer as a fluorescent probe for trace monitoring 2,4,6-trinitrophenol |
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| 摘要: 基于对苯二甲酸(H2bdc)和2，7-双(4-吡啶基)-9，9-二甲基芴(mfdp)配体，通过溶剂热法构筑了一个Zn (Ⅱ)基配位聚合物：{[Zn2(bdc)2(mfdp)]2·4DMA·2Me2NH·3H2O}n(1)(DMA=N，N-二甲基乙酰胺)，并用红外光谱、元素分析、热重和单晶X射线衍射等进行了结构表征。在配合物1中，相邻的锌离子具有相同的{ZnNO4}配位构型，共同构成轮桨状的构筑单元。由拓扑结构分析可知，该配合物具有二重互穿的{412·63}结构。荧光传感实验表明配合物1的荧光能够被2，4，6-三硝基苯酚猝灭，且具有很高的灵敏度(检测限LOD=0.164 μmol·L-1，猝灭常数KSV=6.65×104 L·mol-1)和选择性。 |
| 关键词: 芴 配位聚合物 Zn(Ⅱ) 荧光探针 芳香硝基化合物 |
| 基金项目: 山西省基础研究计划(自由探索类)面上项目(No.20210302123086)资助。 |
| Abstract: A Zn(Ⅱ)-based coordination polymer (CP), {[Zn2(bdc)2(mfdp)]2·4DMA·2Me2NH·3H2O}n (1), was synthesized by solvothermal method based on H2bdc and mfdp, where H2bdc=1,4-benzenedicarboxylic acid, mfdp=2,7-bis (4-pyridyl)-9,9-dimethylfluorene, and DMA=N,N-dimethylacetamide. It was characterized by FTIR, elemental analysis, TGA, and single-crystal X-ray diffraction. In 1, two adjacent zinc ions lie in the same {ZnNO4} geometrical configurations, forming a paddle-wheel building block. Complex 1 displays 2-fold interpenetrating frameworks with {412· 63} topology and with the emission peak situated at 385 nm, which offers a good foundation to be integrated as a chemical sensor. The fluorescence sensing experiments showed that the LOD (limit of detection) of 2,4,6-trinitrophenol (TNP) was 0.164 μmol·L-1, and the quenching constant (KSV) was 6.65×104 L·mol-1, indicating the excellent detection ability of trace analytes in DMA. |
| Keywords: fluorene coordination polymers Zn(Ⅱ) fluorescence probe nitroaromatic compounds |
| 投稿时间：2024-11-07 修订日期：2025-02-24 |
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| 孙述文,王高峰.一种痕量监测2，4，6-三硝基苯酚的锌基配位聚合物荧光探针的构筑[J].无机化学学报,2025,41(4):753-760. |
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