Selectively Fluorescent Sensing Behavior of Phenylaza‐15‐crown‐5‐triazolyl Coumarin for Hg 2+  and Fe 3+  in Alcohol and Aqueous Media Respectively | Zendy

Zhang Zhijun | Zendy; Wang Hui | Zendy; Zhang Hengyi | Zendy; Liu Yu | Zendy

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Selectively Fluorescent Sensing Behavior of Phenylaza‐15‐crown‐5‐triazolyl Coumarin for Hg 2+ and Fe 3+ in Alcohol and Aqueous Media Respectively

Author(s) -

Zhang Zhijun,

Wang Hui,

Zhang Hengyi,

Liu Yu

Publication year - 2013

Publication title -

chinese journal of chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.28

H-Index - 41

eISSN - 1614-7065

pISSN - 1001-604X

DOI - 10.1002/cjoc.201300216

Subject(s) - chemistry , fluorescence , click chemistry , cycloaddition , alkyne , aqueous solution , metal ions in aqueous solution , 18 crown 6 , photochemistry , azide , coumarin , conjugated system , copper , metal , triazole , nuclear chemistry , inorganic chemistry , ion , polymer chemistry , catalysis , organic chemistry , polymer , physics , quantum mechanics

A π‐conjugated phenylaza‐15‐crown‐5‐triazol‐substituted coumarin fluoroionophore 1 was synthesized by copper(I)‐catalyzed Huisgen alkyne‐azide 1,3‐dipolar cycloaddition (CuAAC "click" reaction). 1 can display selective fluorescence enhancement toward Fe 3+ over Hg 2+ , Cr 3+ and the other metal ions in aqueous solution. In sharp contrast, the fluorescence behavior between Fe 3+ and Hg 2+ is completely reversed in EtOH. That is, Hg 2+ gives the largest fluorescence enhancement over Cr 3+ , Fe 3+ and the other metal ions.

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