使用以下关键词在ORCA中用TD-DFT对磷光分子进行了NTO分析
! PBE0 def2-TZVP miniprint tightSCF SOMF(1X)
%tddft
nroots 10
tprint 1E-8
MaxDim 100
dosoc true
tda false
Triplets true
DoNTO true
printlevel 3
end
%rel
soctype 3
SoCFlags 1,2,3,0
end
* xyz 0 1
按照sob老师的教程,想要计算氮原子在各激发态下对hole和electron的贡献,并且也作了电子空穴图。电子空穴图显示,S1态和T1态的等值面都非常相似,但是计算的氮原子片段hole贡献在S1态的时候还有50%多,t1态就仅剩了12%,和电子空穴图就对不上了,hole图显示氮原子的贡献占比还挺高
为什么会出现这种情况?和在multiwfn中给出的warning“ For TD task, ORCA does not print configuration coefficients but only print corresponding contributions of each orbital pair, in this case Multiwfn determines configuration coefficients simply as square root of contribution values. However, this treatment is evidently inappropriate and the result is nonsense when de-excitation is significant (In this situation you have to use TDA-DFT instead)”有关吗?如果就是这个原因,对我这个情况更换哪种分析方法最好?
作者Author: wal 时间: 2025-7-10 13:36
把TDA打开或者换软件作者Author: sobereva 时间: 2025-7-10 23:03
把问题简化,开着TDA,去掉和SOC相关的设置、去掉DoNTO
之后若还有问题,把输入文件压缩后上传(太大就传网盘),并且把Multiwfn里输入的命令都贴出来作者Author: anananante 时间: 2025-7-12 15:40