heres sum more useless knowledge i guess lol:

The polarizability is also frequency-dependent; we consider here the high-frequency (electronic) value and the low-frequency (static) limit.

The latter includes not only the response of the electrons to an applied field but also a vibrational contribution from the response of the

atoms in the molecule. For the mean electronic polarizability, we adopt the value 1.457(3)×10-30 m3, which Russell and Spackman [12] extracted

from refractive index data. For the vibrational contribution to the total polarizability in the low-frequency limit, we adopt the estimate of

Bishop and Cheung [13], which is 0.037×10-30 m3. The uncertainty in the vibrational contribution is probably on the order of ten percent [13].

For the mean total dipole polarizability (in the static limit), which is the sum of the electronic and vibrational effects, we therefore adopt

a value of 1.494(7)×10-30 m3.