title: Structural and photophysical properties of novel dual fluorescent compounds, 1-aryl-substituted 6-methoxy-4-quinolones.
abstract: Dual fluorescent compounds are useful platforms for the development of ratiometric probes and sensors. We have developed a new series of dual fluorescent compounds, 1-aryl-substituted 6-methoxy-4-quinolones, and investigated their structural and photophysical properties. The X-ray crystallographic analysis and ab initio quantum chemical calculations revealed that the developed compounds exhibited 60-75 degrees twisted structures. The dual fluorescence of the compounds were observed in polar solvents, and the ratiometric fluorescence responses to alterations in the acidity and temperature were obtained.
authors.affiliation: Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
authors.forename: Junzo
authors.initials: J
authors.lastname: Hirano
authors.forename: Kenji
authors.initials: K
authors.lastname: Hamase
authors.forename: Takeyuki
authors.initials: T
authors.lastname: Akita
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Zaitsu
mesh_terms: D005456:Fluorescent Dyes / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D015394:Molecular Structure; D010777:Photochemistry; D015363:Quinolones / Q000737:chemistry*; D012997:Solvents; D013696:Temperature
chemical_list: D005456:Fluorescent Dyes; D015363:Quinolones; D012997:Solvents