| 基于香豆素的比率型荧光探针对溶液及气相中三氟化硼的检测 |
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| 引用本文： | 赵慧君,吴通,孙玥,段炼,马嫣宇.基于香豆素的比率型荧光探针对溶液及气相中三氟化硼的检测[J].高等学校化学学报,2021,42(8):2422. |
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| 作者姓名： | 赵慧君 吴通 孙玥 段炼 马嫣宇 |
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| 作者单位： | 太原理工大学化学化工学院,太原030024 |
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| 基金项目： | 国家自然科学基金(21301126);山西省青年科技研究基金(2013021009-3);山西省高校创新项目(2017128) |
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| 摘 要： | 合成了一种以香豆素为主体的具有高选择性及灵敏性的比率型荧光探针3-对甲基苯基-7-二乙氨基香豆素(TDC), 并将其用于溶液及气相中三氟化硼(BF3)的即时可视化检测, 检出限为5.5×10-7 mol/L. 通过荧光光谱、 紫外-可见吸收光谱和核磁共振波谱(19F NMR)等方法证实, 该探针与BF3之间发生的路易斯酸碱反应会对TDC分子内电荷转移(ICT)过程产生影响, 从而引起光谱和溶液颜色的明显变化. 基于TDC分子制成的试纸能够实现裸眼检测溶液和气相中的BF3.
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| 关 键 词： | 三氟化硼 香豆素衍生物 比率荧光检测 试纸检测 |
| 收稿时间： | 2021-01-13 |
A Coumarin-based Ratiometric Fluorescent Probe for BF3 Detection in Solution and Air |
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| ZHAO Huijun,WU Tong,SUN Yue,DUAN Lian,MA Yanyu.A Coumarin-based Ratiometric Fluorescent Probe for BF3 Detection in Solution and Air[J].Chemical Research In Chinese Universities,2021,42(8):2422. |
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| Authors: | ZHAO Huijun WU Tong SUN Yue DUAN Lian MA Yanyu |
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| Institution: | School of Chemistry and Chemical Engineering，Taiyuan University of Technology，Taiyuan 030024，China |
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| Abstract: | A selective and sensitive coumarin-based ratio fluorescent probe 3-p-methylbenzene-7-diethylamino coumarin（TDC） was developed for BF3 detection in dichloromethane and gas phase. The detection limit of BF3 was estimated to be 5.5×10-7 mol/L. The probe TDC showed a remarkable ratio fluorescence change in the presence of BF3 with a fast respond time. 19F NMR result demonstrated that the Lewis acid-base complexes formed between the diethylamino substituents in the probe and BF3 greatly influenced the intramolecular charge transfer（ICT） process. To meet the practical application， a simple test strip system was developed to detect BF3 in gas phase rapidly with obvious color changes. |
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| Keywords: | Boron trifluoride Coumarin derivative Ratiometric fluorescent detection Strip test |
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