文献类型：期刊文献

英文题名：A colorimetric and fluorescent chemodosimeter responding to Cu2+ with high selectivity and sensitivity

作者：Li, Changjiang[1,2,3];Xiang, Kaiqiang[2,3];Liu, Yunchang[2,3];Zheng, Yuchuan[1];Pan, Le[1];Tian, Baozhu[2,3];Zhang, Jinlong[2,3]

机构：[1]Huangshan Univ, Dept Chem, Huangshan 245041, Peoples R China;[2]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[3]E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China

年份：2015

卷号：41

期号：8

起止页码：5915

外文期刊名：RESEARCH ON CHEMICAL INTERMEDIATES

收录：;EI(收录号：20151700781233);WOS:【SCI-EXPANDED(收录号:WOS:000357133500075)】；

基金：This work was supported by the Anhui Provincial Higher Educational Institutions Natural Science Foundation of China (KJ2011B168), the National Science Foundation of China (No. 21401065), the Research Fund of Education of the People's Republic of China (JPPT-125-4-076), and the Science Project of Huangshan University (2013xkj012).

语种：英文

外文关键词：DCMS; Cu2+; Colorimetric; Fluorescent chemodosimeter; Redox reaction

摘要：4-(dicyanomethylene)-2-methyl-6-[p-(dimethylamino)-styryl]-4H-pyran (DCMS) as a colorimetric fluorescent chemodosimeter for Cu2+ was synthesized. DCMS can selectively recognize Cu2+ without disturbance by other metal ions in acetonitrile. Furthermore, the DCMS solution showed a distinguishable color change visible to the naked eye after addition of Cu2+. DCMS for Cu2+ sensing in acetonitrile had a remarkably low detection limit of 0.2 mu M, which is 1 % of the toxicity level in drinking water defined by the US Environment Protection Agency (USEPA). Interestingly, the results suggest that the Cu2+ sensing mechanism may be involved in a redox reaction between Cu2+ and DCMS.