Applying this model to spherical molecules with point dipole moments gave rise to the Stockmayer model,  and one of its terms describes repulsion between electron ?
The McQuarrie-Katz and Weeks-Chandler-Andersen variants involve application of perturbation theory to this model, which require the separation of its terms. Along with Devonshire, it's namesake introduced a theory to describe the melting of simple solids. The 'shifted force' form of this model includes an extra linear term which ensures that its gradient is zero at the cutoff length, which is usually set around 2.5, and for binary systems the interaction parameters can be calculated by applying the Lorentz-Berthelot mixing rules to the parameters of this model. Applying this model to spherical molecules with point dipole moments gave rise to the Stockmayer model,  and one of its terms describes repulsion between electron ? clouds as a result of the Pauli exclusion principle. The 1 over r to the sixth term in this describes attraction due to van der Waals forces and it. For 10 points, identify this model that describes interactions between two atoms, which isn't actually doubly eponymous.
The McQuarrie-Katz and Weeks-Chandler-Andersen variants involve application of perturbation theory to this model, which require the separation of its terms.
{Lennard}-{Jones potential}