A Highly Sensitive and Selective Fluorescence Chemosensor for Cu2+ and Zn2+ Based on Solvent Effect |
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| Authors: | Xiaobo Huang Qian Miao Lu Wang Jieming Jiao Xianjing He Yixiang Cheng |
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| Institution: | 1. College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, China
2. Key Lab of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, China |
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| Abstract: | A novel fluorescence chemosensor 1 based on (R)‐binaphthyl‐salen can exhibit highly sensitive and selective recognition responses toward Cu2+ by "turn‐off" fluorescence quench type in THF/H2O, and Zn2+ by "turn‐on" fluorescence enhancement type in CHCl3/CH3CN, respectively, suggesting that solvents can dramatically affect the responsive properties of salen‐based chemosensor. In addition, Cu2+ 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 Cu2+ probe based on CD spectra. |
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| Keywords: | binaphthyl-salen fluorescence chemosensor solvent effect circular dichroism transition metal ion sensing |
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