标题: 求助垂直吸收情况下电子态势能面交叉问题 [打印本页] 作者Author: liurui 时间: 2023-11-10 22:54 标题: 求助垂直吸收情况下电子态势能面交叉问题 各位老师!!!学生在计算基态为不同多重度时遇到了很多问题,希望各位老师帮学生看看,谢谢各位老师!!!!
1.首先基态是单重态的情况,这种情况下是可以指定激发到那个重态上,比如说,学生想从S0激发到T1,但是有遇到振子强度此时为0的情况,学生想算电子态势能面交叉,这个振子强度为0的点是否是我们想要的T1点,还是说要顺承到下一个振子强度不为零的点呐,谢谢各位老师!
2.接下来,学生还想计算基态为三重态和五重态的情况,例如,单重态是三重态的情况,输入文件为:#p pbepbe/genecp nosymm int=ultrafine TD(full,nstates=15),发现输出文件为:
Excited state symmetry could not be determined.
Excited State 1: 5.009-?Sym 0.1083 eV 11450.59 nm f=0.0000 <S**2>=6.022
19B -> 20B 1.05851
19B <- 20B 0.34768
This state for optimization and/or second-order correction.
Total Energy, E(TD-HF/TD-KS) = -293.455336241
Copying the excited state density for this state as the 1-particle RhoCI density.
Excited state symmetry could not be determined.
Excited State 2: 5.038-?Sym 1.0281 eV 1205.92 nm f=0.0000 <S**2>=6.096
19B -> 21B 0.99781
Excited state symmetry could not be determined.
Excited State 3: 5.014-?Sym 1.4718 eV 842.39 nm f=0.0000 <S**2>=6.035
22A -> 25A 0.19219
23A -> 24A 0.97775
Excited state symmetry could not be determined.
Excited State 4: 5.011-?Sym 1.5240 eV 813.56 nm f=0.0008 <S**2>=6.027
22A -> 24A 0.95372
23A -> 25A -0.29996