A Highly Sensitive and Selective Fluorescence Chemosensor for Cu^2＋ and Zn^2＋ Based on Solvent Effect  

作　　者：Xiaobo Huang Qian Miao Lu Wang Jieming Jiao Xianjing He Yixiang Cheng 

机构地区：[1]College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zkejiang 325035, China [2]Key Lab of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University Nanjing, Jiangsu 210093, China

出　　处：《Chinese Journal of Chemistry》2013年第2期195-199,共5页中国化学（英文版）

基　　金：the National Natural Science Foundation of China，National Basic Research Program of China，Zhejiang Provincial Natural Science Foundation，the Bureau of Science and Technology of Wenzhou

摘　　要：A novel fluorescence chemosensor 1 based on （R）-binaphthyl-salen can exhibit highly sensitive and selective recognition responses toward Cu^2＋ by ＂turn-off＂ fluorescence quench type in THF/H20, and Zn^2＋ by ＂turn-on＂ fluorescence enhancement type in CHC13/CH3CN, respectively, suggesting that solvents can dramatically affect the responsive properties of salen-based chemosensor. In addition, Cu^2＋ can lead to the most pronounced changes of CD spectra without the influence of solvents, which indicates this kind chemosensor can also be used as a sole Cu^2＋ probe based on CD spectra.A novel fluorescence chemosensor 1 based on （R）-binaphthyl-salen can exhibit highly sensitive and selective recognition responses toward Cu^2＋ by ＂turn-off＂ fluorescence quench type in THF/H20, and Zn^2＋ by ＂turn-on＂ fluorescence enhancement type in CHC13/CH3CN, respectively, suggesting that solvents can dramatically affect the responsive properties of salen-based chemosensor. In addition, Cu^2＋ can lead to the most pronounced changes of CD spectra without the influence of solvents, which indicates this kind chemosensor can also be used as a sole Cu^2＋ probe based on CD spectra.

关 键 词：binaphthyl-salen fluorescence chemosensor solvent effect circular dichroism transition metal ion sensing 

分 类 号：O621.25[理学—有机化学] TP212.2[理学—化学]