used to interpret experimental findings. These studies, performed in the solution phase, show that LIESST in [Fe(L222N5)(CN)2] occurs on the 100 fs timescale under different types of photoexcitation. In addition, coherent oscillations were observed, resulting from the structural dynamics accompanying LIESST, which were recently evidenced in more conventional octahedral FeIIN6 systems.
[Fe(L 222 N 5)(CN)2 ]化合物,其中L 222 N 5指大环席夫碱
配体2,13-二甲基-3,6,9,-12,18-五
氮杂双环[12.3] .1] octadeca-1(18),2,12,14,‐16-
戊烯是一种光磁Fe II基配位化合物,该化合物经历光诱导的激发自旋态俘获(LIESST)。低自旋态是六配位的,而高自旋态是七配位的。该系统还很复杂,用于设计由其他类型的具有不同配位
金属的砖构成的三核或一维化合物。在这里,通过结合飞秒光谱学和在X射线自由电子激光器LCLS的XPP站进行的飞秒X射线吸收测量,研究了其超快自旋态光开关动力学。DFT和TD-DFT计算用于解释实验结果。这些在固溶阶段进行的研究表明,[Fe(L 222 N 5)(CN)2]在不同类型的光激发下在100 fs的时标上发生。此外,观察到相干振荡是由于伴随LIESST的结构动力学引起的,最近在更常规的八面体Fe