The structure of liquid and supercritical deuterium fluoride from neutron scattering using high-pressure techniques

We present neutron diffraction data for deuterium fluoride at two liquid an d four supercritical states in the temperature range of 300-473 K and for p ressures up to 320 bar, spanning a factor of 4 in sample density. The intra - and intermolecular parts of the measured structure factors were separated and conclusions about the temperature and density dependence of the intra- and intermolecular structure are deduced. (C) 2000 American Institute of P hysics. [S0021-9606(00)50733-8].