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- W2023002689 abstract "We report the spectroscopic characterization of six fluorescent probes for fluoride sensing and/or monitoring. All probes are based on the ability of the boronic acid group to interact with fluoride. The probes combine electron donor and withdrawing groups and involve the excited charge transfer mechanism. The change between the neutral form of the boronic acid group [R-B(OH)2], which is an electron withdrawing group, and the anionic trifluoro form [R-BF−3], which is an electron donating group, is at the origin of the different spectral changes observed for the investigated probes. Two probes are based on the stilbene structure where the boronic group in the 4 position is coupled with a cyano group, in one case, and the dimethylamino group in the other case, both at the 4′ position. Another probe is based on the diphenyl-1,4-butadiene possessing the boronic acid group in the 4′ position and a dimethylamino group in the 4 position. One probe is based on the diphenyloxazole structure having both the boronic acid and the dimethylamino groups in para positions. The two last probes reported are based on the benzalacetophenone (chalcone) structure, again coupling the boronic acid and dimethylamino groups. All probes show spectral shifts and/or intensity changes in the presence of fluoride resulting in most of the cases to a wavelength-ratiometric way for the detection and/or analysis of fluoride. Selectivity and stability constants are also presented and discussed." @default.
- W2023002689 created "2016-06-24" @default.
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- W2023002689 date "2002-02-01" @default.
- W2023002689 modified "2023-10-12" @default.
- W2023002689 title "New Sensitive and Selective Fluorescent Probes for Fluoride Using Boronic Acids" @default.
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- W2023002689 doi "https://doi.org/10.1006/abio.2001.5476" @default.
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