The behavior of HCl molecules dissolved in CCl4 has been studied with
the use of molecular dynamics simulation. The solvent-solute interacti
on has been represented by potential functions of increasing complexit
y, i.e. the solvent is characterized by a single Lennard-Jones (LJ) si
te (model I), five LJ sites (model II), five LJ sites bearing partial
charges (model III). The results obtained with these models, which are
compared with those of infrared band shape analyses, yield a descript
ion of the effect of steric and electrostatic interactions on the ther
modynamic, structural and dynamic properties of the liquid mixture.