Re: [gmx-users] NPT problem

2017-07-14 Thread Alex
at the box dimensions are small and thats the problem? > Thanks,Mohammad > From: Alex > To: Discussion list for GROMACS users ; > Discussion list for GROMACS users > Sent: Friday, 14 July 2017, 11:31:06 > Subject: Re: [gmx-users] NPT problem > > > > > >

Re: [gmx-users] NPT problem

2017-07-14 Thread ‪Mohammad Roostaie‬ ‪
: [gmx-users] NPT problem > > I used "gmx x2top -f gr.gro -o topol1.top -ff cnt_oplsaa -name CNT > -noparam -pbc" for generating the topology. then I used "gmx editconf > -f grvmdn.pdb -o gr.gro -box 11 11 11 -angles 90 90 90" for creating > the box > A

Re: [gmx-users] NPT problem

2017-07-14 Thread Alex
s ; Mohammad Roostaie *Sent:* Thursday, 13 July 2017, 22:51:48 *Subject:* Re: [gmx-users] NPT problem Also, that tutorial's parameters that are completely wrong for graphene. For bulk graphene bond types I suggest: CJCJ 10.14200 420420.0 For bulk angles: CJ CJ CJ

Re: [gmx-users] NPT problem

2017-07-13 Thread ‪Mohammad Roostaie‬ ‪
ards,Mohammad From: Alex To: Discussion list for GROMACS users ; Mohammad Roostaie Sent: Thursday, 13 July 2017, 22:51:48 Subject: Re: [gmx-users] NPT problem Also, that tutorial's parameters that are completely wrong for graphene. For bulk graphene bond types I suggest:  

Re: [gmx-users] NPT problem

2017-07-13 Thread Alex
Also, that tutorial's parameters that are completely wrong for graphene. For bulk graphene bond types I suggest: CJCJ 10.14200 420420.0 For bulk angles: CJ CJ CJ 1 120.000659.346 For bulk dihedrals: CJ CJ CJ CJ 3 17.30770 0.0 -

Re: [gmx-users] NPT problem

2017-07-13 Thread Alex
It is very unclear what you mean by "the results were good" and then "the results were not good." Your graphene setup is bad and it propagated to everything else. Please do not start solvating your graphene sample prior to making sure that your model is reasonable. To diagnose what's wrong with you

[gmx-users] NPT problem

2017-07-13 Thread ‪Mohammad Roostaie‬ ‪
Hi All GROMACS users,   I created graphene with nanotube modeler then I created a force field for graphene based on OPLS (by using this link and its parameters: http://chembytes.wikidot.com/grocnt). I generated the topology file using x2top command. I put the graphene inside a box of water (TI