A fluorescent probe with "AIE plus ESIPT" characteristics for Cu2+ and F- ions estimation

被引：67

作者：

Sen Gupta, Akul ^{[1
]}

Paul, Kamaldeep ^{[1
]}

Luxami, Vijay ^{[1
]}

机构：

[1] Thapar Univ, Sch Chem & Biochem, Patiala 147004, Punjab, India

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2017年 / 246卷

关键词：

Tetraphenylethylene; ESIPT; Aggregation; Emission; TD-SCF; AGGREGATION-INDUCED EMISSION; ACTIVITY ASSAY; TETRAPHENYLETHYLENE; ACETYLCHOLINESTERASE; RECOGNITION; ENSEMBLE; STATE;

D O I：

10.1016/j.snb.2017.02.080

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

We report a fluorescent probe 2 possessing hydroxyaryl Schiffs base onto tetraphenylethylene (TPE) moiety with characteristic of both aggregation induced emission (AIE) and excited-state intramolecular proton transfer (ESIPT). The coupled AIE and ESIPT shows the significant advantages, such as no self quenching at high concentration, large stokes shift, high selectivity towards analyte etc. It has also been used for estimation of F- and Cu2+ ions amongst various anions and metal ions, respectively. Probe 2 shows the emission at 540 nm with a large stokes shift of 170 nm and presence of Cu2+ ions induce the restriction of intramolecular motions leading to high emission in the aggregated state (ALE) at longer wavelength (NIR region). (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：653 / 661

页数：9

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