Fluorescent perylene diimide rotaxanes:: Spectroscopic signatures of wheel-chromophore interactions

被引：40
作者：
Baggerman, Jacob
Jagesar, Dhiredj C.
Vallee, Renaud A. L.
Hofkens, Johan
De Schryver, Frans C.
Schelhase, Frauke
Voegtle, Fritz
Brouwer, Albert M.
机构：
[1] Univ Amsterdam, Van Hoff Inst Mol Sci, NL-1018 WS Amsterdam, Netherlands
[2] Katholieke Univ Leuven, Dept Chem, B-3001 Heverlee, Belgium
[3] Univ Bonn, Kekule Inst Organ Chem & Biochem, D-53121 Bonn, Germany
来源：
CHEMISTRY-A EUROPEAN JOURNAL | 2007年 / 13卷 / 04期
关键词：
fluorescence spectroscopy; rotaxanes; single-molecule studies; time-resolved spectroscopy; UV/Vis spectroscopy;
D O I：
10.1002/chem.200601014
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
[2]- and [3]-rotaxanes with a tetraphenoxy perylene diimide core were synthesized. Hydrogen bonding between the wheel and the imide changes the optical properties of the perylene chromophore: the absorption and fluorescence spectra are red-shifted. The decay times of the rotaxanes are shorter in comparison with that of the axle. Single molecule fluorescence measurements reveal relatively narrow distributions of emission maxima and decay times. The averages are in agreement with ensemble measurements. The observed red shifts make the perylene diimide a suitable chromophore for sensing the position of the wheel on the axle.
引用
收藏
页码：1291 / 1299
页数：9
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