Published online by Cambridge University Press: 10 February 2011
Sharing of the kinetic energy among the translational-rotational-vibrational (T-R-V) degrees of freedom in a molecular crystal, following excitation of the T degrees of freedom, has been studied by means of molecular dynamics. The model was similar to that employed in [2]. The Tdegrees of freedom were energized by adding a velocity distribution to the (100) molecular lattice planes so as to excite certain normal modes in the [100] direction. The kinetic energy components in TR, V and the rates of energy sharing between T-V and T-R were determined. The results were then compared with those from rapid compression of the same model, with or without defects.