The structure of a fluid mixture of deuterated ethane and deuterated methane by high-pressure neutron diffraction experiments

Abstract

High-pressure neutron diffraction data on a mixture of 33.3 mole % deuterated ethane and 66.7 mole % deuterated methane at six supercritical states are presented. The density could be varied by a factor larger than 2. The density dependence of the intra- and intermolecular structure is determined. The resulting total atomic pair correlation functions are compared with the results of Monte Carlo computer simulations with effective pair potentials.