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在最近投稿的一篇文章中,我使用Molcas手册中的模板(输入见下文)计算来MS-CASPT2级别的SOC,审稿人提问了一个问题,如下:
It iswritten that the SOC was calculated at the MSCASPT2 level using Openmolcas.Does this mean that the matrix elements of the SOC matrix are computed at theMSCASPT2 level? Or is the SOC calculated with SACASSCF and only the diagonalelements of the SOC matrix are replaced with MSCASPT2 energy and diagonalized?Please describe clearly.
我不太了解程序到底是怎么算的,之前粗浅的认识是第一种算法,MS-CASPT2直接计算得到SOC。如有错误,请论坛有熟悉Molcas程序的前辈不吝赐教,十分感谢!
- *CASPT2/RASSI calculation on singlet-triplet gaps in acrolein
- *File: CASPT2.S-T_gap.acrolein
- *
- &GATEWAY
- Title= Acrolein molecule
- coord = acrolein.xyz; basis = STO-3G; group= c1
- &SEWARD
- AMFI
- &SCF
- &RASSCF
- Spin= 1; Nactel= 6 0 0; Inactive= 12; Ras2= 5
- CiRoot= 1 1 1
- &CASPT2
- Frozen= 4
- MultiState= 1 1
- >>COPY $Project.JobMix JOB001
- &RASSCF
- LumOrb
- Spin= 3; Nactel= 6 0 0; Inactive= 12; Ras2= 5
- CiRoot= 5 5 1
- &CASPT2
- Frozen= 4
- MultiState= 5 1 2 3 4 5
- >>COPY $Project.JobMix JOB002
- &RASSI
- Nr of JobIph= 2 1 5; 1; 1 2 3 4 5
- Spin
- EJob
复制代码
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