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本帖最后由 wsy151162 于 2024-11-26 09:29 编辑
非常新新手,想请教各位ORCA6在波函数稳定性测试和后续计算的问题
通过查看论坛内的各类帖子和手册查到orca6可以使用
%scf stabperform true end 做稳定性测试,刚开始显示波函数不稳定,但是后面它自己重新又收敛到了稳定的波函数。
接下来我就用!MORead %moinp ".gbw" 和%scf GuessMode CMatrix end 读取在稳定性测试中得到的波函数做tddft, 得到的T1依然是负值后,我就对上一步得到的波函数再做了一次稳定性测试,第一轮仍然是无法得到稳定的波函数,需要到第二轮,感觉有点鬼打墙了,想请教一下各位要怎么样利用到这稳定的波函数去做下一步呢?
文件包含两个稳定性测试的inp和out文件,非常感谢各位。
Orbitals have been transformed and reconvergence is now attempted
**************************************************
* The wavefunction in try 1/ 5 is unstable. *
* Trying to re-converging now *
**************************************************
----------------------------------------D-I-I-S--------------------------------------------
Iteration Energy (Eh) Delta-E RMSDP MaxDP DIISErr Damp Time(sec)
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*** Starting incremental Fock matrix formation ***
1 -55867.9023760067648254 0.00e+00 3.35e-05 7.02e-03 3.36e-03 0.700 166.1
Warning: op=0 Small HOMO/LUMO gap ( 0.052) - skipping pre-diagonalization
Will do a full diagonalization
2 -55867.9034939686825965 -1.12e-03 3.68e-05 7.41e-03 3.56e-03 0.700 88.6
***Turning on AO-DIIS***
3 -55867.9052610028884374 -1.77e-03 3.37e-05 6.21e-03 3.67e-03 0.700 78.0
4 -55867.9070216857799096 -1.76e-03 1.15e-04 1.91e-02 3.59e-03 0.000 77.3
5 -55867.9138436696375720 -6.82e-03 9.31e-05 2.59e-02 2.44e-03 0.000 86.6
6 -55867.9153572440409334 -1.51e-03 8.76e-05 2.39e-02 1.19e-03 0.000 82.7
7 -55867.9158106163522461 -4.53e-04 3.54e-05 1.13e-02 8.16e-04 0.000 82.4
*** Restarting incremental Fock matrix formation ***
****Resetting DIIS****
Warning: op=0 Small HOMO/LUMO gap ( 0.078) - skipping pre-diagonalization
Will do a full diagonalization
8 -55867.9158250061736908 -1.44e-05 1.06e-04 1.81e-02 4.75e-04 0.000 179.4
9 -55867.9158237872034078 1.22e-06 5.58e-06 1.61e-03 9.33e-04 0.000 119.6
10 -55867.9158276784146437 -3.89e-06 2.98e-05 8.65e-03 1.43e-04 0.000 86.5
11 -55867.9158325425523799 -4.86e-06 1.53e-05 4.64e-03 1.33e-04 0.000 95.9
12 -55867.9158315450040391 9.98e-07 1.09e-05 2.34e-03 1.33e-04 0.000 91.1
**** Energy Check signals convergence ****
*****************************************************
* SUCCESS *
* SCF CONVERGED AFTER 12 CYCLES *
*****************************************************
Recomputing exchange energy using gridx3 ... done ( 180.685 sec)
Old exchange energy : -318.973661956 Eh
New exchange energy : -318.973620204 Eh
Exchange energy change after final integration : 0.000041752 Eh
Total energy after final integration : -55867.915789793 Eh
**** ENERGY FILE WAS UPDATED (A-I-triF-fromg.en.tmp) ****
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WAVEFUNCTION STABILITY ANALYSIS
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****Iteration 0****
Lowest Energy : 0.056442185673
Maximum Energy change : 0.060887386274 (vector 2)
Maximum residual norm : 0.005148511405
(省略)……
****Iteration 8****
Lowest Energy : 0.047129713967
Maximum Energy change : 0.000051868459 (vector 1)
Maximum residual norm : 0.000019153692
*** CONVERGENCE OF RESIDUAL NORM REACHED ***
The eigenvalues of the stability matrix:
E( 0) = 0.04712971 Eh
E( 1) = 0.04759661 Eh
E( 2) = 0.05535287 Eh
The stability analysis shows that the wavefunction is stable
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