ELECTRONIC RAMAN SPECTRA .V. THEORY FOR ELECTRONIC RAMAN TRANSITIONS OF PRCL3

A calculation has been performed of the electronic Raman spectrum of PrCl3. It has been found that antisymmetry plays an important role in many of the 3H4 intermanifold transitions and the 3H4-3H5 transitions. The frequency dependence of the antisymmetry has also been investigated and it turns out that a rather pronounced dependence exists. Transitions to the 3F 2 levels are all related to a symmetric scattering tensor, but some of the elements of this tensor are zero. In order to predict the selection rules of the electronic Raman transitions, use has been made of the eigenvectors of the crystal-field states and a 3j symbol. The effect of the crystal field goes via these properties, and direct information on the value of the nonvanishing elements and also on the vanishing part of the tensor is obtained.