8-Hydroxyquinoline derivative as a fluorescent chemosensor for zinc ion.
8-Hydroxyquinoline derivative 1 as a fluorescent chemosensor for Zn2+ was synthesized. Because Cd2+ is often found with Zn2+ in the environment and can form fluorescent complexes with chelating fluorophores, a potentially important property of chemosensors for Zn2+ is their selectivity for Zn2+ over Cd2+. The Zn2+ or Cd2+ complexes of 1 gave an emission band from the 1:1 complex, but the fluorescence intensity for Cd2+ was a half of that for Zn2+. Ligand 1 is suited for use as a fluorescent chemosensor for Zn2+.
Department of Materials Science and Technology, Faculty of Science and Technology, Hirosaki University, Bunkyo-cho 3, Hirosaki, Aomori 036-8561, Japan.
Jun
J
Kawakami
Masaki
M
Ohta
Yasuhiro
Y
Yamauchi
Kunio
K
Ohzeki
D015394:Molecular Structure; D015125:Oxyquinoline / Q000031:analogs & derivatives* / Q000737:chemistry; D013050:Spectrometry, Fluorescence; D013057:Spectrum Analysis; D015032:Zinc / Q000032:analysis*
D015125:Oxyquinoline; D015032:Zinc