title: A ditopic fluorescent sensor for potassium fluoride.
abstract: The addition of potassium fluoride 'switches on' the fluorescence of sensors and while potassium chloride and bromide cause no fluorescence change; the fluorescence can be 'switched off' by removing the potassium cation from the benzocrown ether receptors of sensors and through the addition of [2.2.2]-cryptand and restored by the addition of the potassium cation as potassium chloride.
authors.affiliation: University of Bath, Department of Chemistry, Bath, UKBA2 7AY.
authors.forename: Suvi J M
authors.initials: SJ
authors.lastname: Koskela
authors.forename: Thomas M
authors.initials: TM
authors.lastname: Fyles
authors.forename: Tony D
authors.initials: TD
authors.lastname: James
mesh_terms: D001896:Boron Compounds / Q000737:chemistry*; D005456:Fluorescent Dyes / Q000737:chemistry*; D005459:Fluorides / Q000737:chemistry*; D015394:Molecular Structure; D017680:Potassium Compounds / Q000737:chemistry*
chemical_list: D001896:Boron Compounds; D005456:Fluorescent Dyes; D017680:Potassium Compounds; C033320:potassium fluoride; D005459:Fluorides