A rate constant expression for charge transfer through fluctuating bridges
A rate constant expression for charge transfer through fluctuating bridges
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DOI:
10.1063/1.1601600
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发表时间:
2003-09
影响因子:
4.4
通讯作者:
A. Troisi;A. Nitzan;M. Ratner
中科院分区:
文献类型:
--
作者:
A. Troisi;A. Nitzan;M. Ratner
A rate constant expression for charge transfer reactions mediated by flexible bridges is presented as a series of terms of decreasing importance. The leading term corresponds to the static limit obtained from the Condon approximation. Corrections due to finite time fluctuations are evaluated explicitly, assuming a Gaussian shape of the coupling autocorrelation function and the Marcus model with a one-dimensional harmonic thermal bath. The use of this model for the interpretation of experimental data and the expected magnitudes of the fluctuation effects are discussed.