Iridium (III) complex-based fluorescent probe for detection of thiophenols and its application in water samples

被引：20

作者：

Lu, Haiyue ^{[1
]}

Zhang, Daobin ^{[1
]}

Fan, Congbin ^{[1
]}

Guo, Yaqian ^{[1
]}

Xia, Xiaoli ^{[1
]}

Pu, Shouzhi ^{[1
]}

机构：

[1] Jiangxi Sci & Technol Normal Univ, Jiangxi Key Lab Organ Chem, Nanchang 330013, Jiangxi, Peoples R China

来源：

DYES AND PIGMENTS | 2019年 / 163卷

基金：

中国国家自然科学基金;

关键词：

Thiophenol; Fluorescent probe; Iridium(III) complex; 2,4-Dinitrobenzenesulfonamide; ON PHOSPHORESCENT CHEMODOSIMETER; AQUEOUS-SOLUTION; RED; DIARYLETHENE; THIOLS; PHOTOPHYSICS; TOXICITY; EMISSION; LIGANDS; IR(III);

D O I：

10.1016/j.dyepig.2018.11.051

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

In consideration of the nucleophilic capacity of thiophenols, which could cleave sulfonamide bond under neutral conditions, a cyclometalated iridium(III) complex (probe 1) comprised 2,4-dinitrobenzenesulfonamide (DNBS as the recognition unit was designed and synthesized to high selectivity and sensitivity detect thiophenol successfully based on internal charge transfer (ICT) mechanism. Upon addition with thiophenols to 20% DMSO, PBS solution of nearly non-fluorescent probe 1 (10 mu M, pH = 7.4), fluorescent product (complex 2) was formed after cleavage of DNBS group and a significant emission enhancement at 470 nm was observed. In addition, it could be successfully applied to detect thiophenol in water samples with a high recovery, confirming its practical value in environment science.

引用

页码：138 / 144

页数：7

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