title: Ratiometric and selective fluorescent sensor for F(-) based on intramolecular charge transfer (ICT).
abstract: A simple colorimetric and ratiometric fluorescent anion sensor 1, was rationally designed and synthesized by facile one-step condensation on basis of the mechanism of intramolecular charge transfer (ICT). The sensor 1 shows more highly and selectively ability to F(-) that induced the color changes from little yellow to purple, absorption-transferred to long wavelength and emission-transferred to short wavelength. Accordingly, (1)H NMR analysis reveals that the F(-)-induced colorimetric and fluorometric responses of 1 are simply driven by hydrogen bonding interaction between the NH protons and F(-) ions.
authors.affiliation: Department of Chemistry, Nankai University, Tianjin, 300071, People's Republic of China.
authors.forename: Yaping
authors.initials: Y
authors.lastname: Li
authors.forename: Hai
authors.initials: H
authors.lastname: Lin
authors.forename: Huakuan
authors.initials: H
authors.lastname: Lin
mesh_terms: D000838:Anions / Q000737:chemistry; D003124:Colorimetry; D005456:Fluorescent Dyes / Q000138:chemical synthesis / Q000737:chemistry*; D005461:Fluorine / Q000737:chemistry*; D006860:Hydrogen Bonding; D009682:Magnetic Resonance Spectroscopy; D008856:Microscopy, Fluorescence; D015394:Molecular Structure; D011522:Protons; D013056:Spectrophotometry, Ultraviolet
chemical_list: D000838:Anions; D005456:Fluorescent Dyes; D011522:Protons; D005461:Fluorine