Abstract
Neutron diffraction has been used to study the structure of liquid fluoroform, dichlorodifluoromethane, and chlorodifluoromethane at 153 K. Accurate values of the intramolecular atomic separations have been found from the radial distribution functions. In addition, information regarding the intermolecular liquid structure of the three fluids has been obtained. Molecular dynamics simulations are underway to interpret these observations.