Application of a point-charge model to the O2−, O22− and O2− ions formed in the presence of Li, K and Cs

doi:10.1016/0039-6028(92)91333-7

Surface Science

Volumes 269–270, 15 May 1992, Pages 687-690

https://doi.org/10.1016/0039-6028(92)91333-7 Get rights and content

Abstract

The O²⁻, O₂²⁻ and O₂⁻ ions which are formed in the presence of Li, K and Cs have been studied by means of XPS and UPS and characterized through the multiplet structures of their valence-band spectra. It has been shown that the binding energies of the electronic levels of these species are consistent with a point-charge model since (i) within experimental errors, core-valence energy separations are independent of the environment and (ii) the experimental values are close to the free-ion values. This work thus opens a new way to identify oxygen species in the presence of alkali metals.

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¹: Present address: CRMD, 1b Rue de la Férollerie, F-45071 Orléans Cedex 2, France.

²: Present address: Surface du Verre et Interfaces, 39 Quai Lucien Lefranc, F-93303 Aubervilliers, France.

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Application of a point-charge model to the O2−, O22− and O2− ions formed in the presence of Li, K and Cs

Abstract

Vacuum

Surf. Sci.

Surf. Sci.

Surf. Sci.

Surf. Sci. Rep.

J. Electron Spectrosc. Relat. Phenom.

Phys. Rev. Lett.

Advanced Inorganic Chemistry

Chemistry of Elements

J. Chem. Phys.

Phys. Rev. B

Phys. Rev. B

Application of a point-charge model to the O²⁻, O₂²⁻ and O₂⁻ ions formed in the presence of Li, K and Cs