Coordination number and chemical shift in K α1,2 emission of Mg 2+ in oxide glasses

Abstract

The empirical relation was established between the coordination structure of Mg 2+ in oxide crystals and the chemical shift of Mg K α 1,2 emission. The relation was successfully used in determining coordination number of Mg 2+ in MgOP 2O 5 and K 2OMgOB 2O 3 glasses. The primary factor afecting the coordination of Mg 2+ and Al 3+ was found to be the donor property of ligand oxygen. The chemical shift was plotted as a function of the optical basicity calculated from chemical composition of a glass. The plot was useful in predicting the coordination number of Mg 2+ and Al 3+ in an arbitrarily chosen glass.