jo070361y_si_001.pdf (865.95 kB)
Download file

Ion-Induced FRET On−Off in Fluorescent Calix[4]arene

Download (865.95 kB)
journal contribution
posted on 25.05.2007, 00:00 by Min Hee Lee, Duong Tuan Quang, Hyo Sung Jung, Juyoung Yoon, Chang-Hee Lee, Jong Seung Kim
A novel calix[4]arene bearing one 2,3-naphthocrown-6 and two coumarin amide units at the lower rim in partial-cone conformation (1) 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.