title: Exclusive fluoride ion recognition and fluorescence "turn-on" response with a label-free DMN Schiff base.
abstract: 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 phenyl para-position. Selectivity for F(-) is attributed to the suitable acidity of -NH2.
authors.affiliation: Department of Chemistry, Indian Institute of Science Education and Research Bhopal, ITI Gas Rahat Building, Govindpura, Bhopal, 462023, India.
authors.forename: Masood Ayoub
authors.initials: MA
authors.lastname: Kaloo
authors.forename: Jeyaraman
authors.initials: J
authors.lastname: Sankar
mesh_terms: D005459:Fluorides / Q000737:chemistry*; D009570:Nitriles / Q000737:chemistry*; D012545:Schiff Bases / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D013379:Substrate Specificity
chemical_list: D009570:Nitriles; D012545:Schiff Bases; D005459:Fluorides