Wavelength tunable tetraphenylethene fluorophore dyads: Synthesis, aggregation-induced emission and Cl2 gas detection

被引：14
作者：
Ma, Liangwei [1 ,2 ]
Li, Chengpeng [2 ]
Liang, Qiufeng [2 ]
Wang, Sheng [1 ,2 ]
Cao, Derong [1 ]
机构：
[1] South China Univ Technol, Sch Chem & Chem Engn, State Key Lab Luminescent Mat & Devices, Guangzhou 510641, Guangdong, Peoples R China
[2] Lingnan Normal Univ, Sch Chem & Chem Engn, Dev Ctr New Mat Engn & Technol Univ Guangdong, Zhanjiang 524048, Peoples R China
来源：
DYES AND PIGMENTS | 2018年 / 149卷
关键词：
Aggregation-induced emission; Fluorescence; Wavelength tunable; Cl-2; gas; Chemosensor; LIGHT-EMITTING-DIODES; OLED PERFORMANCE; BARBITURIC-ACID; AIE; MOIETIES; TRIARYLAMINE;
D O I：
10.1016/j.dyepig.2017.10.042
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
We designed and synthesized three new tetraphenylethene (TPE) derivatives (CZ-TPE, DMA-TPE and TPA-TPE) modified with different electron rich group (carbazole, N, N-dimethylaniline and triphenylamine segments, respectively) by Knoevenagel condensation reaction. The chemical structures of these compounds are identified by NMR, MS and IR. The absorption and emission of these dyes were investigated by UV-Vis and fluorescence spectroscopy, respectively. The results shown three dyes exhibited evident aggregation-induced emission (AIE) or aggregation-induced emission enhancement (AIEE) properties with wavelength tunable emission. Their emission color can be tuned from green to orange in tetrahydrofuran/H2O solutions, from green to red in solid state or pure tetrahydrofuran solutions. In addition, the solution or film of TPA-TPE shown results in distinct fluorescence from "ON" to "Off' observation as well as color change from orange yellow to colorless by naked eyes when the addition of toxic Cl-2 gas, which can be used as an excellent dual chromo- and fluorogenic signal changes that is well suited for monitoring Cl-2 gas in solution, or solid film, conveniently. These results indicate TPA-TPE is a promising candidate chemosensor for the detection of Cl-2 gas.
引用
收藏
页码：543 / 552
页数：10
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