Rational Design of Double-Check Mercury Ion Chemosensors Based on Photochromic Compounds
Rational Design of Double-Check Mercury Ion Chemosensors Based on Photochromic Compounds
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DOI：
10.1002/ijch.201200102
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发表时间：
2013-05-01
影响因子：
3.2
通讯作者：
Tian, He
中科院分区：
文献类型：
--
作者：
Jin, Jiayu;Li, Xin;Tian, He
设计并合成了一种新的光致变色化合物S1，它含有一个反-顺式光致异构单元和一个汞检测化学传感单元。通过荧光强度测量，S1显示出对汞离子的显著选择性。此外，在光稳态下，还实现了对汞离子的比色响应。将汞离子引起的S1的荧光关闭定义为第一检查，而将光稳定状态下汞引起的比色变化设置为第二检查。因此，可以实现双重检查汞化学传感器。
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.