文献类型：期刊文献

英文题名：A novel colorimetric and fluorescent sensor for cyanide anions detection based on triphenylamine and benzothiadiazole

作者：Zhang, Qisong;Zhang, Jian;Zuo, Hujin;Wang, Chengyun;Shen, Yongjia[1]

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China; E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China

年份：2016

卷号：72

期号：9

起止页码：1244

外文期刊名：TETRAHEDRON

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000373408900013)】；

基金：The project was supported by National Natural Science Foundation of China (No. 21576087, 21076078).

语种：英文

外文关键词：Triphenylamine; Benzothiadiazole; Colorimetric; Fluorescent; Cyanide-sensing

摘要：A chemical sensor containing triphenylamine and benzothiadiazole for cyanide anions detection was designed and synthesized, whose structural feature is a donor-acceptor-donor (D-A-D) molecular configuration, which is substituted with a dicyanovinyl group served as a sensing unit. The nucleophilic addition of cyanide ion to the dicyanovinyl moiety was activated in the principle of Michael addition, which broken the electron-withdrawing interaction of dicyanovinyl moiety. The obstruction in the intramolecular charge transfer (ICT) induced remarkable changes in the absorption and emission spectra. The sensor exhibited splendid selectivity and anti-interference performance towards CN- over other anions (F-, Cl-, Br-, I-, NO2-, NO3-, HCO3-, H2PO4-, HS-, HSO3-, NCO-, SCN-, SO32-, SO42-, HPO42-, CO32-). The mechanism was investigated by absorption and emission spectra together with 1H NMR titration. (C) 2016 Elsevier Ltd. All rights reserved.