期刊
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
卷 224, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.saa.2019.117409
关键词
Benzothiazolium; Cyanide ion; Chemosensor; Aggregation-induced emission
类别
资金
- school foundation of Wuhan Textile University [183010]
- Young People Fund of Hubei Provincial Department of Education [184043]
A novel colorimetric and fluorescence turn-on chemosensor TBB with benzothiazolium moiety has been explored, which exhibited the high selectivity for cyanide ion (CN-) in THF-H2O (2:8, v/v) mixture. The aqueous solution of sensor TBB was scarcely emissive. In the presence of CN- ion, the nucleophilic addition of CN- with the benzothiazolium C=N bond of TBB produced the new species TBB-CN, consequently resulting in the intense orange-red emission by aggregation-induced emission (AIE) effect. Meanwhile, the color of solution was changed from orange-yellow to light yellow. The sensing mechanism was verified by Mass spectrometry, NMR analysis and DFT calculations. (C) 2019 Elsevier B.V. All rights reserved.
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