title: Investigation of desilylation in the recognition mechanism to fluoride by a 1,8-naphthalimide derivative.
abstract: A reaction-based chemosensor (AF-1) was designed, synthesized and applied as an optical approach for quantitative measurement of F(-) in MeCN. In the presence of F(-), selective fluoride-assisted desilylation instantly gave colorimetric and fluorogenic signals, providing a dual-optical channel for the detection of F(-). (1)H NMR titration was carried out to investigate the desilylation process, revealing F(-) triggered rapid cleavage of Si-O bond in trimethylsilyl ether. AF-1 exhibited high sensitivity and selectivity to F(-) over other anions. The detection limit to F(-) was calculated to be 0.05 ppm.
authors.affiliation: University of Nebraska at Kearney, Department of Chemistry, Kearney, Nebraska 68849, USA. caoh1@unk.edu.
authors.forename: Jeeun
authors.initials: J
authors.lastname: Woo
authors.forename: Gunwoo
authors.initials: G
authors.lastname: Kim
authors.forename: Kevanie
authors.initials: K
authors.lastname: Quintero
authors.forename: Michael P
authors.initials: MP
authors.lastname: Hanrahan
authors.forename: Hector
authors.initials: H
authors.lastname: Palencia
authors.forename: Haishi
authors.initials: H
authors.lastname: Cao
mesh_terms: D005456:Fluorescent Dyes / Q000138:chemical synthesis / Q000737:chemistry; D005459:Fluorides / Q000032:analysis* / Q000737:chemistry*; D015394:Molecular Structure; D053644:Naphthalimides / Q000138:chemical synthesis / Q000737:chemistry*
chemical_list: D005456:Fluorescent Dyes; D053644:Naphthalimides; D005459:Fluorides