T. Bancewicz et al., COLLISION-INDUCED DEPOLARIZED SCATTERING BY CF4 IN A RAMAN VIBRATIONAL BAND, The Journal of chemical physics, 108(19), 1998, pp. 8084-8091
Collision-induced scattering data have been recorded at room temperatu
re for gaseous tetrafluoromethane in a frequency vicinity of the Raman
vibrational line v(1) = 908 cm(-1). For the first time, corresponding
binary depolarized intensities have been measured in absolute units f
or frequency shifts up to 110 cm(-1) from the band center. Comparison
with theoretical semiclassical intensities computed from dipole-induce
d dipole and dipole-multipole light scattering mechanisms leads to an
evaluation of the first derivative of the dipole-quadrupole polarizabi
lity tensor A'. This result is in good agreement with recent ab initio
quantum-chemistry calculations of the CF4 multipolar polarizabilities
. (C) 1998 American Institute of Physics.