A highly sensitive and selective fluorescent probe for fluoride anions based on intramolecular charge transfer |
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| Authors: | Jingkai Liu Zhenghe Xu Caiyun Liu Lirong Xu Zhongpeng Wang Baocun Zhu |
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| Institution: | School of Resources and Environment, University of Jinan, Shandong Provincial Engineering Technology Research Center for Ecological Carbon Sink and Capture Utilization, Jinan, China |
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| Abstract: | Currently, there is a great need to develop methods for the selective detection of fluoride anions (F–) owing to their toxicity in the environment and biological function in living systems. In this study, we developed a new fluorescent probe (probe 1) employing a Si–O bond as a highly selective recognition receptor for detecting F– via intramolecular charge transfer. Probe 1 could detect F– quantitatively using the turn‐on fluorescence spectroscopy method with excellent sensitivity in the range of 4–38 μM and a detection limit of 0.26 μM; the detection time was < 17 min. We anticipate that probe 1 would be used widely to monitor F– in the environment. Copyright © 2015 John Wiley & Sons, Ltd. |
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| Keywords: | fluoride anion intramolecular charge transfer turn‐on fluorescence Si– O bond |
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