Department of Chemistry, Indian Institute of Science Education and Research Bhopal, ITI Gas Rahat Building, Govindpura, Bhopal, India
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Analyst, 2013,138, 4760-4763
10 May 2013,
28 Jun 2013
First published online
01 Jul 2013
A label-free DMN Schiff base (4) has been explored as a highly selective and sensitive fluoride ion receptor. Fluoride-induced deprotonation results in a charge transfer (CT) transition red shifted with a fluorescence ‘turn-on’. Anion selectivity can be tuned by the electron push–pull property of substituents at the phenylpara-position. Selectivity for F− is attributed to the suitable acidity of –NH2.
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