ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7
Novel water-soluble fluorescent probe for rapidly detecting SO2 derivatives
Hui Wang, Le Zhou, Fengze Cai, Yongling Xu, Di Li, Dexiang Feng, Yan Wei, Zhijun Feng, Xiaoxia Gu, and Yunjun Wu
Wannan Medical College, Wuhu, People’s Republic of China
Abstract: In this paper, two novel benzothiazole derivatives EtSN and OAcSN with a D–π–A configuration were developed as fluorescent probes for the detection of HSO3−. Compared with OAcSN, probe EtSN, bearing ester group, displayed a lower detection limit and faster response time. Upon treatment with HSO3−, EtSN and OAcSN displayed noticeable color change from yellow (EtSN)/red (OAcSN) to coreless, respectively. Competitive experiments indicated that EtSN and OAcSN had higher fluorescence selectivity towards HSO3− than other analytes. The sensing mechanism was further illustrated by 1H NMR and TD-DFT.
Keywords: Benzothiazole ; Fluorescent probe ; SO2 derivative
Full paper is available at www.springerlink.com.
Chemical Papers 73 (11) 2737–2743 (2019)