Reaction-based fluorescence probes for "turn on" sensing fluoride ions. Issue 6 (24th January 2022)

• Record Type: Journal Article
• Authors: He, Wen-Ying; Liu, Ning; Jiang, Xu; Zheng, Yan-Zhen; Lin, Zhi-Wei; Shen, Jiang-Shan
• Is Part Of: Organic & biomolecular chemistry. Volume 20:Issue 6(2022)
• Page Start: 1191
• Page End: 1195
• Publication Date: 2022-01-24
• Subjects: Chemistry, Organic -- Periodicals; Bioorganic chemistry -- Periodicals; Chemistry, Physical organic -- Periodicals; 547
• DOI: 10.1039/d1ob02324a
• Languages: English
• ISSNs: 1477-0520

Abstract

Abstract : Two novel TPE-based fluorescence probes, TPEONO2 and TPEO(NO2 )2, were synthesized to develop probes for F − ions with a fluorescence "turn on" mode via the cleavage of a sulfonyl ester bond. Abstract : Introducing a weak covalent bond into an originally highly fluorescent molecule to create a non-fluorescent probe is able to provide a new way to detect some nucleophilic targets with enhanced sensitivity. Herein, this is the first time that a tetraphenylethene (TPE)-based probe (TPEONO2 ) bearing a p -nitrobenzenesulfonyl moiety for the sensing of F − ions in aqueous solution via a cleavage reaction of the sulfonyl ester bond to induce aggregation-induced emission (AIE) has been reported.