Electron–gas intermolecular potential of N2O–Ar. Comparison with mean square torques measurements

The intermolecular potential of the N2O–Ar system is computed using the Gordon–Kim electron–gas model for 12 distances and 17 angles. The electron–gas Hartree–Fock potential is compared to SCF pseudopotential calculations for three orientations: 0, π/2, and π. Taking into account the long range dispersive part of the potential, the mean square torque applied by a gaseous argon medium to the N2O molecule is computed at different temperatures and a comparison with experimental data is carried out.