A Selective and Sensitive “Turn‐on” Fluorescent Chemosensor for Recognition of Hg 2+  Ions in Water | Zendy

Dai Huiling | Zendy; Yan Yuanyuan | Zendy; Guo Yong | Zendy; Fan Lingling | Zendy; Che Zhiping | Zendy; Xu Hui | Zendy

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A Selective and Sensitive “Turn‐on” Fluorescent Chemosensor for Recognition of Hg 2+ Ions in Water

Author(s) -

Dai Huiling,

Yan Yuanyuan,

Guo Yong,

Fan Lingling,

Che Zhiping,

Xu Hui

Publication year - 2012

Publication title -

chemistry – a european journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.687

H-Index - 242

eISSN - 1521-3765

pISSN - 0947-6539

DOI - 10.1002/chem.201201604

Subject(s) - fluorescence , chemistry , turn (biochemistry) , photochemistry , metal ions in aqueous solution , selectivity , aldehyde , ion , water soluble , combinatorial chemistry , organic chemistry , catalysis , optics , biochemistry , physics

Based upon highly selective and irreversible Hg 2+ ‐promoted deprotection of the dithioacetal reaction, a new water‐soluble “turn‐on” fluorescent chemosensor ( 1 ) was prepared and exhibited high selectivity and sensitivity towards the Hg 2+ ion over other heavy and transition‐metal ions in pure water by transforming a weakly fluorescent precursor (colorless) to a highly fluorescent aldehyde (yellow–green; see figure) with a 155‐fold increase in fluorescent intensity.

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