  Neutron diffraction results obtained for plastic crystalline
dichlorodibromomethane (CBr2Cl2) have been modelled by means of the Reverse
Monte Carlo method. Comparison with its liquid phase is provided at several
levels of the atomic structure (total scattering structure factors, partial
radial distribution functions, orientational and dipole-dipole correlations).
Results reveal that the relative orientation of neighbouring molecules largely
depends on the steric effect. The small dipole moment has not as strong
influence as the steric effect on the short range order. Our observations fit
well with earlier findings presented for the series CBrnCl4-n (n=0, 1, 2, 4).
