title: Fluorogenic Hg2+-selective chemodosimeter derived from 8-hydroxyquinoline.
abstract: [reaction: see text] A new thioamide derivative of 8-hydroxyquinoline-benzothiazole was prepared, and its fluorogenic chemodosimetric behaviors toward transition-metal ions were investigated. The thioamide derivative showed highly Hg2+-selective fluorescence enhancing properties (167-fold) in 30% aqueous acetonitrile solution. The selective and sensitive signaling behaviors were found to originate from the Hg2+ ion induced transformation of the very weak fluorescent thioamide derivative into a highly fluorescent amide analogue.
authors.affiliation: Department of Chemistry, Chung-Ang University, Seoul 156-756, Korea.
authors.forename: Ki Cheol
authors.initials: KC
authors.lastname: Song
authors.forename: Jun Soo
authors.initials: JS
authors.lastname: Kim
authors.forename: Sang Mi
authors.initials: SM
authors.lastname: Park
authors.forename: Kee-Choo
authors.initials: KC
authors.lastname: Chung
authors.forename: Sangdoo
authors.initials: S
authors.lastname: Ahn
authors.forename: Suk-Kyu
authors.initials: SK
authors.lastname: Chang