CCL: SCF convergence problem with M06L functional in Gaussian 09
- From: Víctor Luaña Cabal
<victor+/-fluor.quimica.uniovi.es>
- Subject: CCL: SCF convergence problem with M06L functional in
Gaussian 09
- Date: Fri, 26 Feb 2016 21:12:50 +0100
Sent to CCL by: =?iso-8859-1?Q?V=EDctor_Lua=F1a?= Cabal
[victor]![fluor.quimica.uniovi.es]
On Fri, Feb 26, 2016 at 01:58:59PM +0000, Close, David M. CLOSED!^!mail.etsu.edu
wrote:
>
> Sent to CCL by: "Close, David M." [CLOSED : mail.etsu.edu]
> Bulumoni:
> If the solution is oscillating, then adding more cycles will not help.
It would be best to animate the output and see which part of the molecule is
changing. Usually this is evident. Perhaps some rocking motion. Anyway, find
the atoms involved and freeze their motion. Then the optimization will converge
rapidly.
Dave's solution is best, but damping the scf convergence may require less user
time and more cpu time if you are in a hurry.
Good luck,
Víctor Luaña
--
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