Novel Fluorescent Molecular Clips: Selective Recognition Towards Fe3+ in Aqueous Solution |
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| Authors: | Lin Li Neng-fang She Zhuan Fei Pui-kin So Yu-zhou Wang Li-ping Cao An-xin Wu Zhong-ping Yao |
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| Affiliation: | (1) Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, 430079, People’s Republic of China;(2) State Key Laboratory for Chirosciences and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, People’s Republic of China; |
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| Abstract: | In this paper, we report the synthesis, characterization and Fe3+-sensing properties of a series of new artificial fluorescent molecular clips, and structure of clip 1 is confirmed by X-ray crystallography. All these molecular clips had the ability to bind and sense Fe3+ selectively through decrease fluorescence responses in THF-MeOH-Water. Fluorimetric titration experiment indicated that the quenching of these compounds’ fluorescence upon Fe3+ probably arises from the electron/energy transfer between Fe3+ and the excited chemosensors. The limit of detection, linear concentration range and selectivity of the fluorescent molecular clips were evaluated in this study as well. |
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