Infrared and Raman spectra of C 6H 6C 6F 6

Abstract

The infrared and Raman spectra of C 6H 6C 6F 6 are analyzed. In the vibrational region, only minimal shifts are observed, compared to C 6H 6 and C 6F 6. For the low frequency lattice mode region, Raman spectra at 77 K and 20 K for C 6H 6C 6F 6 are different from those of the individual molecules. For C 6D 6C 6F 6, the lower frequency lattice modes exhibit no deuterium shifts, while the higher ones move to lower energies. These results are interpreted in terms of weak coupling between partners in the complex.