[gmx-users] L-J question
acb15885 at uprm.edu
Fri Jun 9 15:17:10 CEST 2006
I have a little question. I found some L-J parameters for heme iron for the
GROMOS87 FF and I want to use it in the GROMOS ff43a1 . The units as appear
in the paper [biophys. J. 1995 (69) p810] A(kJ nm^ -12 mol ^-1) 4.30115e-5
and B (kJ nm^ -6 mol ^ -1) 8.886909e-3. I need to make any changes to the
values there is any convertion factor??
Also I found other L-J parameters [J. Phys. Chem. B 2002 (106) p12031] the
unit for this other are A[(kcal/mol)/A^12] 10389.5 and B[(kcal/mol)/A^6]
288.3 also appear the fallowing equation Vnb(rij) =Aijrij^ -12 - Bijrij ^ -6
with Aij(Bij) the geometric means of Ai and Aj(Bi and Bj). How I can
inplemet this values to use it in the GROMOS ff43a1????
Thank you for your help!
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