On 2012-03-26 13:55, bipin singh wrote:
Hello all,
I am using the GAFF topology provided for octan-1-ol at Gromacs liquid
database (http://virtualchemistry.org/molecules/111-87-5/index.php). I
have incorporated all the parameters
for atoms, bonds and non-bonded interaction type in the forcefield
(Amber99sb-ildn in Gromacs) from GAFF topology (111-87-5.top), but I
am not sure how to add the dihedraltypes information in ffbonded.itp
from the GAFF topology as to add this information I need the phase and
kd for each dihedral. Is this information is available in the GAFF
topology provided in the Gromacs database ?
This topology is self supporting and you do not need anything else in
ffbonded.itp.
You should be careful merging such parameters with an existing force
field, because strictly speaking these are different force fields.
--
David van der Spoel, Ph.D., Professor of Biology
Dept. of Cell & Molec. Biol., Uppsala University.
Box 596, 75124 Uppsala, Sweden. Phone: +46184714205.
sp...@xray.bmc.uu.se http://folding.bmc.uu.se
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