Solvent friction effect on intramolecular electron transfer

被引:21
作者
Liu, M
Ito, N
Maroncelli, M [1 ]
Waldeck, DH
Oliver, AM
Paddon-Row, MN
机构
[1] Univ Pittsburgh, Dept Chem, Pittsburgh, PA 15260 USA
[2] Penn State Univ, Dept Chem, University Pk, PA 16802 USA
[3] Univ New S Wales, Sch Chem, Sydney, NSW 2052, Australia
关键词
D O I
10.1021/ja055596a
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
U-shaped donor-bridge-acceptor molecules with different electronic couplings have been investigated as a function of temperature in solvents with slow polarization relaxation, in particular, N-methylacetamide (NMA) and N-methylpropionamide (NMP). At high temperature, the electron-transfer rate is well described by a nonadiabatic model; however, the rate at low temperature is controlled by the solvent friction. The change of the electron-transfer mechanism is discussed and compared with theoretical models.
引用
收藏
页码:17867 / 17876
页数:10
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