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Rational Design of Double‐Check Mercury Ion Chemosensors Based on Photochromic Compounds
Author(s) -
Jin Jiayu,
Li Xin,
Zhang Junji,
Zhao Ping,
Tian He
Publication year - 2013
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1002/ijch.201200102
Subject(s) - chemistry , mercury (programming language) , photochromism , ion , photostationary state , photochemistry , fluorescence , selectivity , organic chemistry , photoisomerization , optics , computer science , programming language , physics , isomerization , catalysis
Abstract A new photochromic compound, S1 , containing a trans ‐ cis photoisomerizable unit and a mercury detecting chemosensor unit, has been designed and synthesized. S1 displayed dramatic selectivity for mercury ions over other ions, through fluorescence intensity measurement. In addition, in the photostationary state, a colorimetric response to mercury ions was also achieved. The fluorescence turn‐off of S1 by mercury ions was defined as the first check, while mercury‐induced colorimetric variation in the photostationary state was set as the second check. Thus, a double‐check mercury chemosensor can be achieved.