R.W. Gammon, E. Courtens, et al.
Physical Review B
The position of the π and σ resonances in the C K edge spectra are determined for multilayer and submonolayer coverages of C2H2, C2H4 and C2H6 at 60 K, on a Cu(100) surface. The majority of the molecules are found lying flat on the surface in submonolayer coverages. We determine an elongation of the C-C bond length, for C2H2 and C2H4 on Cu(100) of 0.21(2) Å and 0.10(2) Å respectively, using the position of the σ resonance on a common energy scale with the gas phase. The results are compared with the ones of strong chemisorption on Pt(111). The σ-shape resonance of C2H6 chemisorbed on a metal substrate is reported for the first time. The molecule shows no elongation. © 1986.
R.W. Gammon, E. Courtens, et al.
Physical Review B
Corneliu Constantinescu
SPIE Optical Engineering + Applications 2009
D.D. Awschalom, J.-M. Halbout
Journal of Magnetism and Magnetic Materials
Hiroshi Ito, Reinhold Schwalm
JES