Dispersion of the mean dipole polarizability α(ω) and dipole polarizability anisotropy κ(ω) of bromotrifluoromethane CBrF3

Dispersive Fourier transform spectroscopy measurements of the refractive index of bromotrifluoromethane, CBrF3, have been performed at pressures up to 105 Pa in the wavelength range between 900 and 325 nm, in order to determine the frequency dependence of the mean dipole polarizability α(ω). Combining our results with measured depolarization ratios ϱ(ω) yields a dispersion formula for the two independent components of the polarizability tensor α⊥(ω) and α∼(ω). The results are used to get estimates of the dispersion interaction energy constant C6, the second hyperpolarizability γ and the mean diamagnetic susceptibility χ of CBrF3.