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791618275

捐助贵宾 (正式写手)

[求助] 文献中看到的一个图,有个地方没太懂

The charge transfer can be either thermally or optically induced. It can be described by transitions between, or motions on, free energy surfaces (FESs).23 The free energy of the whole electron donor−acceptor system, including the solvent environment, is given as a function of the reaction coordinate (Figure 2). Following the Franck−Condon principle, electron motion is much faster than nuclear motion.As a consequence, optically induced charge transfer occurs from the minimum of the reactant state generated by an increase in the energy along the vertical direction to the product FESs, whereas thermally induced charge transfer can occur only in the transition-state (TS) region。
这段的翻译:电荷转移可以是热或光学诱导。通过在自由能曲面之间或者在其上运动的过渡来描述。包括在溶剂环境下,整个电子供体受体体系的自由能,给出了反应坐标的函数(图2)。遵从弗兰克−康登原则,电子运动比原子运动更快。得出结果,光诱导电荷转移在能量的加入下,从反应态最小值沿着垂直方向向产物自由能表面移动,而热诱导电荷转移仅仅发生在过渡区域。
      我想问的是1.光诱导电荷是垂直方向传导的,热诱导为什么就不是呢?热诱导难道不是通过电子激活传递电荷的么?
                        2.图中的过渡区域是那一块啊?我没看明白,

文献中看到的一个图,有个地方没太懂
9MN`FA[H[SL`B(E(J85$`VJ.png
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791618275

捐助贵宾 (正式写手)

Figure 2. Diabatic (dashed line) and adiabatic (solid line) free energy surfaces of an electron donor−acceptor system. The optically induced (green) and thermally induced (blue) charge transfers are shown.  翻译 :图2。非绝热(虚线)和绝热(实线)的电子供体−受体系统的自由能表面。所示的光诱导(绿色)和热诱导(蓝色)的电荷转移。
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