Abstract
A new chalcone-based probe containing coumarin and naphthol at both ends has been synthesized via aldol condensation. The uniqueness of the newly derived probe can be ascribed to the presence of naphthol and coumarin units acting as binding site and signaling element, respectively. The fluorogenic behaviors toward various anions were investigated. The probe was characterized by various spectroscopic techniques and the in-depth study led to show excellent selectivity and sensitivity for fluoride ions. The hydrogen bonding thus formed with fluoride anion provides remarkable fluorometric responses. The interactions of the probe with fluoride ions were determined by fluorescence, FT-IR and NMR spectroscopic techniques. The exploratory studies by fluorescent spectral changes augur well for the naked-eye sensing applications.
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Acknowledgments
The main author (G.-Y. Yeap) gratefully acknowledges Malaysian Ministry of Higher Education (MOHE) for funding this project through FRGS Grant No.203/PKIMIA/6711422.
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Yeap, GY., Hrishikesan, E., Chan, YH. et al. A New Emissive Chalcone-Based Chemosensor Armed by Coumarin and Naphthol with Fluorescence “Turn-on” Properties for Selective Detection of F− Ions. J Fluoresc 27, 105–110 (2017). https://doi.org/10.1007/s10895-016-1938-5
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DOI: https://doi.org/10.1007/s10895-016-1938-5