A naked-eye,selective and sensitive chemosensor for fluoride ion |
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Authors: | Puhui Xie Fengqi Guo Weifeng Wang Xiyang Liu |
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Affiliation: | (1) Department of Chemistry, College of Science, Tianjin University, Tianjin, 300072, People’s Republic of China;(2) College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Engineering Research Center of Pesticide and Medicine Intermediate Clean Production, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan, 250014, People’s Republic of China; |
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Abstract: | Effect of the addition of six different anions on the absorption and fluorescence spectra of acridine yellow G (AYG) was examined. Only the F− anion could induce a visible color change observable with naked eye and a strong fluorescence quenching with K SV of 8.3 × 104 mol−1 L in CH3CN solutions. Calculated results of the interaction between the F− anion and acridine yellow G using the B3LYP/6-31G(d) program showed that the intermolecular charge transfer through the formation of an H-bond between AYG and F− is an essential sensor mechanism. |
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