I'm encountering a problem in implementing particle insertion of carbon dioxide in a nanoparticle system. I'm using tabulated potentials, in which I constructed two separate tables (one for nanoparticle-carbon potentials and one for nanoparticle-oxygen potentials). The groomp command required the carbon and oxygen to be in two different charge groups. However, the submission of the test produced an error that read: "atoms in the molecule to be inserted cannot belong to multiple charge groups. Put them in the same charge group." I don't know how to overcome this contradiction. Any ideas?<div>
<br></div><div>Thanks!</div>