Re: [gmx-users] mathematical expression to obtain the C6 and C12 LJ terms for the GROMOSXX ff family

2011-03-28 Thread Justin A. Lemkul
sa wrote: Thank you Justin for your response I have tried g_sigeps with the OM type LJ values (sigma (nm) = 0.3137 and epsilon (kj/mol) = 1.2231 given in Poger et al. Paper (JCC Vol 31, 6, 1117) as an example. Unfortunately i can't retrieve the C6 and C12 values given for the s

[gmx-users] mathematical expression to obtain the C6 and C12 LJ terms for the GROMOSXX ff family

2011-03-28 Thread sa
> > Thank you Justin for your response > I have tried g_sigeps with the OM type LJ values (sigma (nm) = 0.3137 and epsilon (kj/mol) = 1.2231 given in Poger et al. Paper (JCC Vol 31, 6, 1117) as an example. Unfortunately i can't retrieve the C6 and C12 values given for the same in the GROMOS

Re: [gmx-users] mathematical expression to obtain the C6 and C12 LJ terms for the GROMOSXX ff family

2011-03-27 Thread Justin A. Lemkul
sa wrote: Dear All, I would like to compute the C6 and C12 LJ terms for the GROMOS 53A6 ff for a new atom type and incorporate them in my ffnonbonded.itp. Does anybody know the mathematical expressions used to obtain these terms from a sigma (nm) and an epsilon (kj/mol) values manually.

[gmx-users] mathematical expression to obtain the C6 and C12 LJ terms for the GROMOSXX ff family

2011-03-27 Thread sa
Dear All, I would like to compute the C6 and C12 LJ terms for the GROMOS 53A6 ff for a new atom type and incorporate them in my ffnonbonded.itp. Does anybody know the mathematical expressions used to obtain these terms from a sigma (nm) and an epsilon (kj/mol) values manually. Thank you for your