Slavchov R.I.Dimitrova I.M.Menon A.2024-07-102024-07-102024-07-102024-07-102019-08-140021-960610.1063/1.5110675SCOPUS_ID:85070566073https://rlib.uctm.edu/handle/123456789/538Liquid oxygen is an example for a quadrupolar medium - a dense fluid made of nonpolar molecules carrying a significant quadrupolar moment. In this work, we present a method for the computation of the macroscopic quadrupolarizability of such a quadrupolar liquid. As a first step, the quadrupole moment and the molecular quadrupolarizability of O2 are calculated from first principles. Next, we apply a model generalizing Onsager's dielectric cavity theory to compute the macroscopic quadrupolarizability of liquid oxygen under a wide range of conditions. Literature data for the density and dielectric permittivity of oxygen are used to determine the cavity size independently.enArticle