quartet excited states of these complexes were assigned on the basis of a Gaussian analysis of UV–Vis absorption spectra. The spin Hamiltonian parameters of the ground states, especially the zero-field splittings, were determined from the randomly oriented frozen solution electron paramagnetic resonance spectra. The calculated zero-field splitting parameters determined from the second-order spin–orbit
该电子结构的反式- [CR III(cyclam)X 2 ] Ñ +(cyclam = 1,4,8,11-四氮杂,X =
氯-,OH - ,和H 2O)进行了调查。这些配合物的自旋四重态激发态是根据高斯分析的UV-Vis吸收光谱确定的。基态的自旋哈密顿参数,特别是零场分裂,是从随机取向的冻结溶液电子顺磁共振光谱中确定的。由与最接近的激发四重态的二阶自旋轨道耦合确定的计算出的零场分裂参数被发现与实验观察到的相偏离。发现该偏差反映了轴向结扎剂的结合价。