Benzothiazole based Schiff-base-A mechanistically discrete sensor for HSO4- and I-: Application to bioimaging and vapour phase sensing of ethyl acetate

被引：19

作者：

Kaur, Ishpreet ^{[1
]}

Khajuria, Anjali ^{[2
]}

Ohri, Puja ^{[2
]}

Kaur, Paramjit ^{[1
]}

Singh, Kamaljit ^{[1
]}

机构：

[1] Guru Nanak Dev Univ, UGC Ctr Adv Study 2, Dept Chem, Amritsar 143005, Punjab, India

[2] Guru Nanak Dev Univ, Dept Zool, Amritsar 143005, Punjab, India

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2018年 / 268卷

关键词：

Schiff-base; HSO4- and I- ions; TD-DFT; Molecular electrostatic potential map; Nematodes; Vapours of ethyl acetate; FLUORESCENT CHEMOSENSOR; IODIDE; PROBE; CHEMODOSIMETER; RECOGNITION; HYDROLYSIS; COMPLEX; ANION; IONS;

D O I：

10.1016/j.snb.2018.04.072

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

We report a 2-(4-amino-2-hydroxyphenyl)benzothiazole based Schiff-base, found to be sensitive to the presence of HSO4- and I- ions as demonstrated by modulation of the various photophysical properties in the presence of these ions in solution and biological enviornments (nematodes). Various spectroscopic and TD-DFT calculations have revealed that while the molecular probe detects HSO4- ions via hydrolytic cleavage and subsequent emission enhanced mechanism, the detection of I- ions is accomplished via the formation of intermolecular charge transfer complex and the subsequent heavy atom quenching mechanism. Additionally the potential of the probe for the on site detection of vapours of ethylacetate at workplaces has been demonstrated. (c) 2018 Elsevier B.V. All rights reserved.

引用

页码：29 / 38

页数：10