[gmx-users] Salt molecule - ion bond

[Chih-Ying Lin]

Hi
The salt R-N(CH3)3-Br.

Could anyone tell me how to assign the force field parameter for the
salt molecule ; especially for the ion bond/ ion angle/

Does there exist "dihedral angle " between the ion Br and R ?
And, any differences for assigning the Van-der waal and LJ parameters
between salt and organic molecules?

Thanks
Lin