[gmx-users] Re: Change of force field: ffgmx > ff53a5
Xavier Periole
X.Periole at rug.nl
Wed Sep 17 14:52:35 CEST 2008
On Wed, 17 Sep 2008 15:00:17 +0200
Thomas Schlesier <schlesi at uni-mainz.de> wrote:
> Thank you.
> But i have one last question:
>For epsilon_rf i use the relative permittivity of the medium. I simulate in
>vacuum so epsilon_rf would be 1?
GROMOS ff is not parameterized for vaccum simulations of the b-something
version ... have look at the paper.
>
> Thomas
>
>
> On Wed, 17 Sep 2008 14:27:57 +0200
> Thomas Schlesier <schlesi at uni-mainz.de
><http://www.gromacs.org/mailman/listinfo/gmx-users>> wrote:
>>/ Ok, then i would take to following parameters:
> />/
> />/ _x is vdw or coulomb
> />/
> />/ rlist 1.7 (must be greater then r_x)
> />/ r_x 1.4
> />/ r_x_switch 0.8
> />/ x_type shift
> />/
> />/ right?!?
> /No,
>
> rlist 0.8
> nstlist 5
> rcoulomb 1.4
> rvdw 1.4
> vdwtype cutoff
> coulombtype Reaction-field
>>/ Thomas
> />/
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> -----------------------------------------------------
> XAvier Periole - PhD
>
> Molecular Dynamics Group / NMR and Computation
> University of Groningen
> The Netherlands
> -----------------------------------------------------
>
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XAvier Periole - PhD
Molecular Dynamics Group / NMR and Computation
University of Groningen
The Netherlands
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