Paul S. Bagus, Gianfranco Pacchioni
Rendiconti Lincei
A cluster-model study of Cl and F chemisorbed at a fourfold site of Cu(100) shows that the halogen ionicity is essential -1. The interaction and bonding arise, almost entirely, from the Coulomb attraction between the charged halogen and metal and from the polarization of the electrons associated with these units; covalent bonding makes a very small contribution. The polarization dramatically reduces the dipole moment from that given by the unpolarized ionic units. Thus, changes in the work function are not a measure of the adsorbate ionicity. © 1986 The American Physical Society.
Paul S. Bagus, Gianfranco Pacchioni
Rendiconti Lincei
Carmen Sousa, Tommaso Minerva, et al.
Journal of Electron Spectroscopy and Related Phenomena
Guillermo P. del Conde, Paul S. Bagus, et al.
Theoretica Chimica Acta
Bernard C. Laskowski, Paul S. Bagus
Surface Science