title: Dual channel chromo/fluorogenic chemosensors for cyanide and fluoride ions--an example of in situ acid catalysis of the Strecker reaction for cyanide ion chemodosimetry.
abstract: Two mesitylene based probes, having catechol/phenol units in conjunction to the Schiff base have been synthesized. The probe with a catechol unit can be used to sense and discriminate between F(-) and CN(-) through different colorimetric and fluorimetric responses using DMSO as solvent. However in DMSO:water (2:1) solution it responds selectively to CN(-) ion. The probe with a phenol unit is highly selective and sensitive for CN(-) and can be used for naked eye, semiquantitative sensing of CN(-) ion in DMSO:water (2:1) solution. The chemodosimetry has been attributed to the acid catalyzed Strecker's reaction of an imine bond and is being reported for the first time in a Schiff's base.
authors.affiliation: Department of Chemistry, Guru Nanak Dev University, Amritsar-143005, Punjab, India.
authors.forename: Sanyog
authors.initials: S
authors.lastname: Sharma
authors.forename: Maninder Singh
authors.initials: MS
authors.lastname: Hundal
authors.forename: Geeta
authors.initials: G
authors.lastname: Hundal
mesh_terms: D001555:Benzene Derivatives / Q000737:chemistry*; D002384:Catalysis; D002623:Chemistry Techniques, Analytical / Q000295:instrumentation*; D003124:Colorimetry; D003486:Cyanides / Q000032:analysis* / Q000737:chemistry*; D005456:Fluorescent Dyes / Q000737:chemistry*; D005459:Fluorides / Q000032:analysis* / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D007097:Imines / Q000737:chemistry; D013050:Spectrometry, Fluorescence
chemical_list: D001555:Benzene Derivatives; D003486:Cyanides; D005456:Fluorescent Dyes; D007097:Imines; C010219:mesitylene; D005459:Fluorides