文献类型：期刊文献

英文题名：Rational Design of Double-Check Mercury Ion Chemosensors Based on Photochromic Compounds

作者：Jin, Jiayu[1];Li, Xin[2];Zhang, Junji[1];Zhao, Ping[1];Tian, He[1]

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]KTH Royal Inst Technol, Dept Theoret Chem & Biol, Sch Biotechnol, SE-10691 Stockholm, Sweden

年份：2013

卷号：53

期号：5

起止页码：288

外文期刊名：ISRAEL JOURNAL OF CHEMISTRY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000319297600008)】；

基金：This work was financially supported by National Basic Research 973 Program (2013CB733700) and NSFC/China (21190033).

语种：英文

外文关键词：mercury; photochromism; sensors

摘要：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.