The Independent Molecular Interaction Sites Model III. A Monte‐Carlo Study of the Reference Fluid for Hard Dumbbell Systems

The site-site pair distribution functions of the Independent-Molecular-Interaction-Sites (IMIS) reference fluid for homonuclear hard dumbbell systems are evaluated by Monte-Carlo simulation and from the Percus-Yevick approximation. The good overall agreement with the “exact” pair correlation functions for these systems suggests that the IMIS model provides a reliable route to the structural properties of interaction site model fluids with short-ranged site-site potentials.