Correlation between optical electronegativity, molar refraction, ionicity and density of binary oxides, silicates and minerals

Molar refraction, ionicity and density values for binary oxides, SiO2 polymorphs, silicates and minerals have been evaluated from optical electronegativity. The validity of the proposed empirical relations has been tested in the case of silicates, binary oxides, SiO2 polymorphs and minerals. The estimated values of these parameters are in good agreement with the available literature values. There has been no report on the direct estimation of molar refraction, ionicity and density using the concept of optical electronegativity. Inclusion of optical electronegativity in the expressions has direct bearing on the concept of chemical bonding. (C) 2004 Elsevier B.V. All rights reserved.