| 一种用于检测PO43-离子、Fe3+离子和硝基芳香爆炸物的水稳定发光Zn-配合物传感器 |
| A Water Stable Luminescent Zn-Complex Sensor for Detection of PO43- Ion, Fe3+ Ion, and Nitroaromatic Explosives |
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| 摘要: 基于3-（2，4-二羧基苯基）-6-羧基吡啶配体（H3dpcp），利用溶剂热法制备了发光配合物[Zn（H2dpcp）2（H2O）2]·H2O（1）。配合物1具有新颖的单核蝴蝶状结构，通过π…π相互作用延伸成三维超分子结构。实验结果表明，配合物1在pH=1~10的水溶液中表现出优异的发光稳定性。值得注意的是，配合物1不仅可以利用荧光增强效应高选择性和可循环性地检测PO43-离子，并且Fe3+离子可以使配合物1的发光显著猝灭。对硝基芳香族爆炸物的荧光传感实验表明，配合物1可以作为发光探针高选择性、灵敏性地检测2，4，6-三硝基苯酚（TNP），同时具有较低的检测限。此外，还详细探究了配合物1对上述分析物的发光传感机理。 |
| 关键词: 发光探针 锌配合物 磷酸根离子 2，4，6-三硝基苯酚 |
| 基金项目: 国家自然科学基金（No.21761024，22161032）和内蒙古自然科学基金（No.2021MS02012）资助 |
| Abstract: A luminescent Zn-complex based on the 3-(2, 4-dicarboxylphenyl)-6-carboxylpyridine (H3dpcp), namely[Zn(H2dpcp) 2(H2O) 2]·H2O (1), was successfully fabricated by the solvothermal process. Complex 1 features a mono-nuclear butterfly-like structure, which further extends to the 3D supramolecular architecture via π…π interactions. It is found that complex 1 exhibited excellent luminescent stability in a pH range of 1-10 in an aqueous solution. It should be noted that complex 1 can not only detect PO43- ion based on the turn-on effect with high selectivity and recyclability but also serve as a remarkably selective sensing material with the fluorescence quenching for Fe3+ ion. The examination of nitroaromatic compounds demonstrated that complex 1 also behaved as a functional probe with high selectivity, sensitivity, and the low detection limit of 2, 4, 6-trinitrophenol (TNP). Furthermore, the luminescent sensing mechanisms for the above analytes were also investigated in detail. |
| Keywords: luminescence probe Zn-complex phosphate ion 2, 4, 6-trinitrophenol |
| 投稿时间：2021-12-11 修订日期：2022-03-31 |
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| 贾月皎,梁晓宇,胡明.一种用于检测PO43-离子、Fe3+离子和硝基芳香爆炸物的水稳定发光Zn-配合物传感器[J].无机化学学报,2022,38(6):1146-1158. |
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| Support information: 相关附件： 210553_Supplementary_Information.doc |
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