Effect of temperature, energy gap and distortion of potential surfaces on photoinduced intramolecular electron transfer
Effect of temperature, energy gap and distortion of potential surfaces on photoinduced intramolecular electron transfer
复制标题
温度、能隙和势面畸变对光诱导分子内电子转移的影响
DOI：
10.1021/j100128a008
复制
发表时间：
1993
期刊：
影响因子：
--
通讯作者：
S. Lin
中科院分区：
文献类型：
--
作者：
R. Islampour;R. G. Alden;George Y. C. Wu;S. Lin
本文定量研究了势能面畸变效应和温度效应对光诱导分子内电子转移（PIET）的影响，并将其作为电子能隙的函数。结果表明畸变振子在确定PIET速率对能隙的依赖性方面的重要性。这种现象在某些情况下可能会导致误解的实验数据时，未失真的振荡器被假定为参与PIET过程。观察ET速率的线性（而不是抛物线）依赖性的条件将使用多模模型来确定。在核因子中引入多振动模导致能隙行为，这与单模情况明显不同。最后，比较了PIET和内转换。参考文献25篇，图5，3个标签。
We report the quantitative examination of the effect of distortion of potential energy surfaces and the temperature effect on photoinduced intramolecular electron transfer (PIET) as a function of electronic energy gap. The results demonstrate the importance of distorted oscillators in determining the dependence of the rate of PIET on the energy gap. This phenomenon may in some cases lead to misinterpretations of experimental data, when undistorted oscillators are assumed to be involved in the PIET process. The condition for observing the linear (rather than parabolic) dependence of the ET rate will be determined using the multimode model. The inclusion of multivibrational modes in the nuclear factors results in energy gap behavior, which is markedly different from the single mode case. Finally, a comparison between PIET and internal conversion is discussed. 25 refs., 5 figs., 3 tabs.