GROMACS version: 2021.4
GROMACS modification: Yes/No
Here post your question : I am preparing a biphasic system of water-cyclohexane. I got the cyclohexane pdb and itp files using charm gui. I am following the biphasic tutorial , where chx.top file is obtained using PRODRG. So I wanted to know how to get the chx.top file (if I am using any other forcefield like charmm36, OPLS or AMBER)? Can anyone please help me with this?