A Rational Designed Dual-channel Chemosensor for Mercury Ions Based on Hydrolysis of Schiff Base  

作　　者：Guiyuan Wu Bingbing Shi Bing Hu Youming Zhang Qi Lin Hong Yao Taibao Wei 

机构地区：[1]Key Laboratory of Eco-Environment-Related Polymer Materials,Ministry of Education of China,Key Laboratory of Polymer Materials of Gansu Province,College of Chemistry and Chemical Engineering,Northwest Normal University,Lanzhou,Gansu 730070,China

出　　处：《Chinese Journal of Chemistry》2014年第7期637-644,共8页中国化学（英文版）

基　　金：the National Natural Science Foundation of China(Nos.21064006,21262032 and 21161018);the Program for Changjiang Scholars and Innovative Research Team in University of Ministry of Education of China(No.IRT1177);the Natural Science Foundation of Gansu Province(No.1010RJZA018);the Youth Foundation of Gansu Province(No.2011GS04735)and NWNU-LKQN-11-32.

摘　　要：A bilateral Schiff base is reported for the colorimetric and fluorometric dual-channel sensing of Hg^(2+)ions by taking advantage of the hydrolysis of carbon-nitrogen double bond,altering an ICT state mechanism and then Hg^(2+) ions coordinating with amino moieties of 1,5-DAN and leading to the aggregation of 1,5-DAN.Meanwhile,it formed a stable neutral complex of amino-Hg-amino.In addition,test strips based on L were fabricated,which also exhibited a good selectivity to Hg^(2+) as in solution.This work provides a novel approach for the selective recognition of mercury ions.Notably,the color changes are very significant and all the recognition processes can be observed by the naked eyes.We believe the test strips can act as a convenient and efficient Hg^(2+) test kit.

关 键 词：Schiff base fluorescent and colorimetric HYDROLYSIS mercury ions ICT complex 

分 类 号：O62[理学—有机化学]