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Chemical bonding effects in the inverse photoemission spectra of chemisorbed CO

✍ Scribed by P.S. Bagus; K. Hermann; Ph. Avouris; A.R. Rossi; K.C. Prince

Publisher
Elsevier Science
Year
1985
Tongue
English
Weight
378 KB
Volume
118
Category
Article
ISSN
0009-2614

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✦ Synopsis

The mverse photoemission spectra of CO chemisorbcd on several transition mcral surfaces shows a broad, = 3 eV full-width at half-maximum, resonance aEsociated with Lhe co 2 T* level. For CO/Cu(l00), there is a doublet rather than a single broad peak We interpret Ihe cheousorbed CO structure as being due to chemical bonding errecu in rhe anionic system An electron may be added into one of LWO distinct kinds of orbit&. In Lhe first kind, associated with lower energy ioruc stales, Lhe orbital is bonding between CO(2T*) and Lhe surface conduction band; in the second kind, the orbital is anti-bonding Tbis interpretation is based on ab initio Hat-tree-Fock wavefunctions for Cu,CO clusters.

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Dipole coupling effects in the coverage-
Dipole coupling effects in the coverage-dependent infrared spectra of CO chemisorbed on Cu(111)
✍ P. Hollins; J. Pritchard πŸ“‚ Article πŸ“… 1980 πŸ› Elsevier Science 🌐 English βš– 475 KB

Isotopic effects observed m the mfrared spectra of CO adsorbed on the Cu(ll1) surface are shown to be compatible with a dlpolecouphng model which relates frequency shifts to the accompanying changes III infrared band mtenslty.