Hi everyone, I have a model for liquid benzene. In this model all bonds are treated as harmonic potentials. When I use larger constants for these potentials (to make molecules more planar), the average density of my benzene (from NPT ensemble) becomes lower. Does virial depend on intramolecular interactions? If a want to make benzene molecules completely rigid (through the virtual sites, for example), can I use the same parameters for intermolecular interactions? Thank you in advance, Alexey
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