A FIR STUDY OF THE INTERACTION-INDUCED SPECTRA OF LIQUID BR-2 CCL4 MIXTURES/

Investigations of induced far infrared profiles of Br-2/CCl4 liquid mi xtures are reported. The absorption spectra are analysed using two dif ferent analytical approaches (the ''Mori'' and the ''Oxtoby-Cell'' mod el). The ''Oxtoby-Cell'' model could be successfully applied only for the diluted mixtures. The model parameters from both approaches reveal evidence of stronger intermolecular interactions, when bromine is add ed to pure CCl4. The dynamics of this system are discussed in terms of the induced dipole moment correlation functions. A plateau between 0. 3ps and 0.6ps is observed in the experimentally calculated interaction induced dipole moment correlation functions (DCF's), apparently due t o translational modes of motion.