过渡金属配合物中的快速系间交叉
Fast Intersystem Crossing in Transition-Metal Complexes
摘要：
背后的机制快速系统间的过渡金属络合物的交叉被证明是一个结果的退相的光激发态的声子连续的一个不同的状态具有显着不同的过渡金属配体的距离。这种耦合是自旋-轨道相互作用引起局部力矩变化的结果。通过声子振荡的阻尼防止了到初始状态的复发。衰减时间快于过渡金属-配体伸缩模的振荡频率，与实验相符。对于以上的区域，其中最强的耦合发生的能量，观察到一个较慢的“泄漏型”衰减。如果光激发态的能量低于它所耦合的状态，那么就没有衰变。
英文摘要：
The mechanism behind fast intersystem crossing in transition-metal complexes is shown to be a result of the dephasing of the photoexcited state to the phonon continuum of a different state with a significantly different transition metal-ligand distance. The coupling is a result of the spin-orbit interaction causing a change in the local moment. Recurrence to the initial state is prevented by the damping of the phonon oscillation. The decay time is faster than the oscillation frequency of the transition metal-ligand stretch mode, in agreement with experiment. For energies above the region where the strongest coupling occurs, a slower "leakage-type" decay is observed. If the photoexcited state is lower in energy than the state it couples to, then there is no decay.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
