CCL:G: Molecular Orbital Energy in G03
- From: "Utpal Sarkar"
<utpalchemiitkgp|gmail.com>
- Subject: CCL:G: Molecular Orbital Energy in G03
- Date: Sun, 20 Jul 2008 16:48:35 +0200
Sent to CCL by: "Utpal Sarkar" [utpalchemiitkgp=-=gmail.com]
dear naser,
your HOMO energy is -0.20837
HOMO-1 energy is -0.25244
HOMO-2 energy is -0.26232 and so on
and LUMO energy is -0.12164
LUMO+1 energy is -0.07563
LUMO+2 energy is -0.06479 and so on
reagrds
utpal
On 7/20/08, naser E Eltayeb nasertaha90-#-yahoo.co.uk
<owner-chemistry]|[ccl.net> wrote:
>
> Sent to CCL by: "naser E Eltayeb" [nasertaha90|yahoo.co.uk]
> Dear All
>
> I am interesting in calculation of molecular orbitals to get the band gap,
I run DFT calculation in Gaussian03, I copy part of the log file below, I know
that the first column is the energy of the orbital, what about the rest column?
I compare the result from the log file and the energy obtained using M.O in
gaussview I found some differences in determination which is HOMO and which is
LUMO.
> I am looking for your answer.
>
> Thank you
>
> Naser E. Eltayeb
> Universiti Sains Malaysia
> nasertaha90 a yahoo.co.uk
>
>
> The electronic state is 1-A.
> Alpha occ. eigenvalues -- -9.83283 -9.83283 -9.83252 -9.83251
-9.82399
> Alpha occ. eigenvalues -- -9.82399 -9.82340 -9.82340 -9.82337
-9.82337
> Alpha occ. eigenvalues -- -9.82254 -9.82254 -9.82226 -9.82225
-0.82730
> Alpha occ. eigenvalues -- -0.79666 -0.75041 -0.73140 -0.70059
-0.69030
> Alpha occ. eigenvalues -- -0.65516 -0.60402 -0.57725 -0.56673
-0.55353
> Alpha occ. eigenvalues -- -0.50171 -0.49584 -0.47726 -0.43812
-0.42999
> Alpha occ. eigenvalues -- -0.42536 -0.42256 -0.39896 -0.39314
-0.38818
> Alpha occ. eigenvalues -- -0.38529 -0.36591 -0.35770 -0.35423
-0.32569
> Alpha occ. eigenvalues -- -0.31572 -0.30999 -0.30549 -0.29902
-0.26232
> Alpha occ. eigenvalues -- -0.25244 -0.20837
> Alpha virt. eigenvalues -- -0.12164 -0.07563 -0.06479 -0.04497
-0.02358
> Alpha virt. eigenvalues -- -0.01807 -0.01629 -0.00887 0.00309
0.00454
> Alpha virt. eigenvalues -- 0.01559 0.02333 0.02338 0.03142
0.03367
> Alpha virt. eigenvalues -- 0.04149 0.04249 0.04310 0.04584
0.06347
> Alpha virt. eigenvalues -- 0.07502 0.07662 0.08473 0.08590
0.08835
> Alpha virt. eigenvalues -- 0.08996 0.10309 0.10417 0.10962
0.11315>
>
>