Setting up a system with Diatomic molecules

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1

GROMACS version: 2020.2
GROMACS modification: No
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I want to set up a system which has diatomic molecules such as Nitrogen. I cannot generate the itp file for diatomic molecules using prodrg. How do I proceed with the first step, pdb2gmx. I am using the AMBERff99SB-ILDN force field for my study.

Thanks,

2

http://manual.gromacs.org/current/how-to/topology.html#adding-a-new-residue

3

Thank you Justin!