Fluorescence 'turn-on' sensor for F super(-) derived from vitamin B sub(6) cofactor

A novel vitamin B sub(6) Schiff base analog (L) was synthesized by combining vitamin B sub(6) cofactor pyridoxal with 2-aminophenol. Receptor L displays a color change detectable by the naked-eye from yellow to red in the presence of fluoride and acetate due to the formation of hydrogen bonding host...

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Bibliographic Details
Published in:Analyst (London) 2013-06, Vol.138 (13), p.3646-3650
Main Authors: Sharma, Darshna, Sahoo, Suban K, Chaudhary, Soma, Bera, Rati Kanta, Callan, John F
Format: Article
Language:English
Subjects:
Color
Displays
Fluorescence
Hydrogen bonding
Receptors
Schiff bases
Stoichiometry
Vitamins
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Description
Summary:A novel vitamin B sub(6) Schiff base analog (L) was synthesized by combining vitamin B sub(6) cofactor pyridoxal with 2-aminophenol. Receptor L displays a color change detectable by the naked-eye from yellow to red in the presence of fluoride and acetate due to the formation of hydrogen bonding host-guest complexes in 1 : 1 stoichiometry. Importantly, receptor L showed fluoride-selective 'turn-on' fluorescent response with a detection limit (3 sigma ) of 7.39 10 super(-8) M.
ISSN:0003-2654
1364-5528
DOI:10.1039/c3an00199g