Molecular reorientation in chlorobenzene

Dielectric Relaxation and Molecular Motions in Liquids

“…*) Calculations have been performed for Nu = 12 and Nb = 7 on the Univac 1108 computer ofthe ,,Zentrales Recheninstitut der Universitat Frankfurt (MY. operator Z l discussed above in order to solve Equation (12) since one has to handle the variation of three Euler angles, and the nuclear spin flips induced by the pseudosecular terms which would lead to the diagonalization of very large matrices. F r e e d , Bruno, and P o l n a s z e k [12], and C h e n H u a n g and K i v e l s o n [13] have applied an approximation which gives excellent results even for very slow reorientation.…”