ELECTRONIC OXIDE POLARIZABILITY AND OPTICAL BASICITY OF SIMPLE OXIDES.1.

zThe average electronic oxide polarizability alpha(0)2- of numerous si ngle component oxides has been calculated on the basis of two differen t properties: linear refractive index n(0) and energy gap E(g), which have demonstrated remarkable correlation. The optical basicity Lambda of the oxides has been estimated on the basis of average electronic ox ide polarizability calculated from the refractive index Lambda(n(0)) a nd the energy gap Lambda(E(g)). A good agreement has been observed bet ween the optical basicity data obtained using independent initial quan tities. The simple oxides have been separated into three groups accord ing to the values of their oxide polarizability. The alpha(0)2- values (above 3 Angstrom) obtained for PbO, Sb2O3, and Bi2O3 have been attri buted to the high cation polarizability and the presence of a lone pai r in the valence shell of the cation. (C) 1996 American Institute of P hysics.