Hello, I wanted to know if one can change the VdW epsilon for just one atom pair. If suppose my system has only carbons, hydrogen and oxygen and if I just want to change the epsilon for C-O interaction for VdW without effecting anything else, i.e. not changing C-C interaction for the oplsaa forcefield, is there a way to do this without modifying the code? As epsilon_H = 0, the only thing which will be effected by changing epsilon_C would be C-O and C-C interaction, but I do not want to change C-C interaction but only C-O interaction.
Thanks, Gaurav
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