A simple AIE-active triphenylamine derivative for supersensitive detection of water in organic solvents with noticeable fluorescence color change

被引：17
作者：
Ruan, Zhijun [1 ]
Zheng, Haixia [1 ]
Deng, Chunyun [1 ]
Cheng, Xiaohong [2 ]
Ruan, Xin [1 ]
Lv, Songwei [3 ]
Chen, Yanmei [1 ]
Liu, Shanshan [1 ]
Lin, Junqi [1 ]
机构：
[1] Huanggang Normal Univ, Coll Chem & Chem Engn, Hubei Key Lab Proc & Applicat Catalyt Mat, Huanggang 438000, Peoples R China
[2] Hubei Univ Arts & Sci, Hubei Key Lab Low Dimens Optoelect Mat & Devices, Xiangyang 441053, Peoples R China
[3] Changzhou Univ, Sch Pharm, Changzhou 213164, Peoples R China
来源：
DYES AND PIGMENTS | 2022年 / 204卷
基金：
中国国家自然科学基金;
关键词：
Aggregation-induced emission (AIE); Twisted intramolecular charge transfer (TICT); Water detection; Solvatochromism; Fluorescence probe; AGGREGATION-INDUCED EMISSION; INTRAMOLECULAR-CHARGE-TRANSFER; ELECTRON-TRANSFER; LIGHT-EMISSION; SOLVATOCHROMISM; CHEMOSENSORS; HUMIDITY; SENSORS; BLUE;
D O I：
10.1016/j.dyepig.2022.110476
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
In this work, an extremely simple triphenylamine-based luminogen 1-(4-(diphenylamino)phenyl)-2-phenyl-ethanone (TPACO) with aggregation-induced emission (AIE) and twisted intramolecular charge transfer (TICT) characteristic was readily synthesized as a super-sensitive fluorescent water sensor. TPACO exhibits remarkable solvatochromic effect and ultrahigh sensitivity to trace water in organic solvents with good linear"intensity-to-content" relationships. The detection limit of TPACO for water in tetrahydrofuran and 1,4-dioxane can be as low as 76 ppm (0.0068 vol%) and 31 ppm (0.0032 vol%), respectively. Under UV irradiation, the probe can signify water content in organic solvents with distinguishable fluorescence color change observable by naked eye. In addition, the emission of TPACO can be quenched by alkali via keto-enol isomerization.
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页数：7
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