title: A newly synthesized thiazole derivative as a fluoride ion chemosensor: naked-eye, spectroscopic, electrochemical and NMR studies.
abstract: 2,3-Indoledione 3-thiosemicarbazone (TSCI) and a novel compound 3-(2-(4-(4-phenoxyphenyl)thiazol-2-yl)hydrazono)indolin-2-one (FTHI) were synthesized with high yield and characterized by spectroscopic techniques. The complexation behaviors of TSCI and FTHI for various anionic species (F(-), Cl(-), Br(-), I(-), NO2(-), NO3(-), BzO(-), HSO4(-), ClO4(-)) in CH3CN were investigated and compared by UV-vis spectroscopy, cyclic voltammetry and (1)H NMR titration techniques. FTHI showed high degree of selectivity for fluoride over other anions. This selectivity could be easily observed by the naked eye, indicating that FTHI is potential colorimetric sensor for fluoride anion.
authors.affiliation: Chemistry Department, Necmettin Erbakan University, 42099 Meram, Konya, Turkey.
authors.forename: Ahmet Burak
authors.initials: AB
authors.lastname: Sarıgüney
authors.affiliation: Chemistry Department, Necmettin Erbakan University, 42099 Meram, Konya, Turkey.
authors.forename: Ahmet Özgür
authors.initials: AÖ
authors.lastname: Saf
authors.affiliation: Chemistry Department, Necmettin Erbakan University, 42099 Meram, Konya, Turkey. Electronic address: acoskun42@gmail.com.
authors.forename: Ahmet
authors.initials: A
authors.lastname: Coşkun
mesh_terms: D055664:Electrochemical Techniques / Q000379:methods; D005459:Fluorides / Q000032:analysis*; D009682:Magnetic Resonance Spectroscopy / Q000379:methods; D013056:Spectrophotometry, Ultraviolet / Q000379:methods; D013882:Thiosemicarbazones / Q000138:chemical synthesis / Q000737:chemistry*
chemical_list: D013882:Thiosemicarbazones; D005459:Fluorides
keywords: (1)H NMR titration; Anion sensor; Fluoride; Isatin-thiazole ring; Voltammetric method