title: Ion-induced FRET on-off in fluorescent calix[4]arene.
abstract: A novel calix[4]arene bearing one 2,3-naphthocrown-6 and two coumarin amide units at the lower rim in partial-cone conformation was synthesized as a colorimetric and FRET-based fluorometric sensor for F(-) and Cs(+) ions. Intramolecular FRET from the naphthalene emission to the coumarin absorption affords high fluorescence selectivity toward F(-) and Cs(+) ions.
authors.affiliation: Department of Chemistry, Dankook University, Seoul 140-714, Korea.
authors.forename: Min Hee
authors.initials: MH
authors.lastname: Lee
authors.forename: Duong Tuan
authors.initials: DT
authors.lastname: Quang
authors.forename: Hyo Sung
authors.initials: HS
authors.lastname: Jung
authors.forename: Juyoung
authors.initials: J
authors.lastname: Yoon
authors.forename: Chang-Hee
authors.initials: CH
authors.lastname: Lee
authors.forename: Jong Seung
authors.initials: JS
authors.lastname: Kim