Conformation, structure, quadrupole coupling constants and van der Waals potential energy surface of dichloromethane–Ar

The rotational spectra of the 35Cl2 and 35Cl37Cl species of dichloromethane–argon have been investigated by molecular beam Fourier-transform microwave spectroscopy. Information on the configuration, structure and internal dynamics of the complex has been obtained, and the 35Cl and 37Cl quadrupole coupling constants have been determined, based on the experimental data.