Re: [gmx-users] How to extend the force field by polariation parameters

2020-04-10 Thread Justin Lemkul
On 4/10/20 6:44 PM, Zuzana Benkova wrote: Dear Justin, thank you for your answer. As I noticed, there is a model of Drude oscillators (shells) used in GROMACS to represent the polarization of atoms. However, there exists model of rigid rod dipole moment which, instead of oscillating

Re: [gmx-users] How to extend the force field by polariation parameters

2020-04-10 Thread Zuzana Benkova
Dear Justin, thank you for your answer. As I noticed, there is a model of Drude oscillators (shells) used in GROMACS to represent the polarization of atoms. However, there exists model of rigid rod dipole moment which, instead of oscillating distance between the core nucleus and the auxiliary

[gmx-users] How to extend the force field by polariation parameters

2020-04-09 Thread Zuzana Benkova
Dear GROMACS users, I am trying to extend the CHARMM force field of graphene by polarization of carbon atoms. I need to use the rigid rod dipole model, with a dipole on each carbon atom, with length of 0.7 A° combined with a charge of 0.1 e, which yields a polarization of 0.910 A°^3 (GRAPPA).