The electron density rearrangements also induce dipole moments in the range of 0.5-4.3 Debye (D, Table ); note all free systems are non-polarized in their free states (D0). The induced dipole moments show a directly proportional correlation to the charge transfer magnitude (Fig. ). Also, dipole polarizability  of the complexes increases compared to free phosphorene (>6.47 esu vs. 6.17•10 -22 esu, Table ), denoting an improving ability to acquire an electric dipole moment in proportion to external perturbations such as an electric field. Likewise, the polarizability of complexes increases as the polarizability of free fullerenes increases, which is directly proportional to the electron density volume of fullerenes.