Electronic structure of the oxides of lead. Part 2.—An XPS study of bulk rhombic PbO, tetragonal PbO, β-PbO2 and Pb3O4

Abstract

XPS studies of the bulk oxides of lead reveal no clear evidence for the presence of the expected two oxidation states of lead in Pb₃O₄. They also show that the Pb 4ƒ binding energies of the two crystallographic modifications of lead monoxides are the same, within experimental error, but are greater than those for β-PbO₂. These results are discussed in the light of lattice potential calculations.