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Paper | Regular issue | Vol 96, No. 5, 2018, pp.850-857
Published online, 18th April, 2018
DOI: 10.3987/COM-18-13887
A Novel Tetraphenylethene-Based Fluorescence Probe Based on the Hg2+-Promoted Deprotection of Thioacetal

Jie Ma,* Luliang Yan, Bingkun Chen, and Mengya Sun

*School of Science, University of Shanghai for Science and Technology, Shanghai 200093, China


A novel tetraphenylethene-based fluorescence probe compound 1 bearing 1,2-ethanedithiol units linked with tetraphenylethene moiety is synthesized efficiently. Compound 1 exhibit sensitively and selectively to Hg2+ over other metal ions in DMF/H2O solution based on aggregation induced emission (AIE) mechanism. The results show that compound 1 demonstrates an Hg2+-specific bathochromic shift and fluorescent enhancement with a 1:2 reacting stoichiometry. The detection limit of compound 1 for Hg2+ is 2×10-6 mol·L-1.