title: Novel indole based colorimetric and "turn on" fluorescent sensors for biologically important fluoride anion sensing.
abstract: A novel indole Hydrazone receptor 1 has been synthesized by one step of condensation, which can act as an efficient colorimetric and "turn on" fluorescent sensor for fluoride anions; Benesi-Hildebrand equation indicates that 1 associates with F(-) in a 1:1 stoichiometry; [TBA]OH and (1)H NMR titration experiments indicate that the deprotonation process involved upon addition of fluoride anions.
authors.affiliation: Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China.
authors.forename: Qian
authors.initials: Q
authors.lastname: Li
authors.forename: Yong
authors.initials: Y
authors.lastname: Guo
authors.forename: Jian
authors.initials: J
authors.lastname: Xu
authors.forename: Shijun
authors.initials: S
authors.lastname: Shao
mesh_terms: D000838:Anions / Q000032:analysis* / Q000737:chemistry; D003124:Colorimetry / Q000379:methods*; D005456:Fluorescent Dyes; D005459:Fluorides / Q000737:chemistry; D006835:Hydrazones / Q000138:chemical synthesis / Q000737:chemistry*; D007211:Indoles / Q000737:chemistry; D019906:Nuclear Magnetic Resonance, Biomolecular; D013050:Spectrometry, Fluorescence; D014466:Ultraviolet Rays
chemical_list: D000838:Anions; D005456:Fluorescent Dyes; D006835:Hydrazones; D007211:Indoles; D005459:Fluorides