Reversible intramolecular electron transfer at the single-molecule level

被引:51
作者
Gronheid, R
Stefan, A
Cotlet, M
Hofkens, J
Qu, JQ
Müllen, K
Van der Auweraer, M
Verhoeven, JW
De Schryver, FC
机构
[1] Katholieke Univ Leuven, Dept Chem, B-3001 Heverlee, Belgium
[2] Max Planck Inst Polymer Res, D-55128 Mainz, Germany
关键词
dendrimers; donor-acceptor systems; electron transfer; fluorescence; single-molecule studies;
D O I
10.1002/anie.200351430
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Fluctuating electron-transfer rates, both forward and back (see picture), were measured at the single-molecule level for a triphenlamine-perylenediimide donor-acceptor dendrimer. These fluctuations, reminiscent of those seen for forward electron transfer in some large biomolecules and so far not documented for synthetic systems, are induced by the local environment and conformational changes in the dendrimer.
引用
收藏
页码:4209 / 4214
页数:6
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