Theoretical study of the valence-level photoemission spectrum of C2H4 adsorbed on a Ni metal surface
Ohno, M. and von Niessen, W. (1997) Theoretical study of the valence-level photoemission spectrum of C2H4 adsorbed on a Ni metal surface. Physical Review B, 55 (8). pp. 5466-5477.
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In order to investigate the valence-level photoemission spectrum of C2 H4 adsorbed on a Ni metal surface, we calculated the valence-hole spectral functions of NiC2 H4 (π bonding) using the ab initio third-order algebraic-diagrammatic-construction (ADC(3)) Green-function method using an extended basis set. We obtained an overall good agreement with experiment. The changes in the spectral features such as the changes in the separations of the ionization energies from the gas phase to the chemisorbed phase are due to the metal ligand bonding exerted via the charge-transfer excitations and do not arise from the distortion of the molecule, which occurs upon chemisorption.
|Publication Type:||Journal Article|
|Murdoch Affiliation:||School of Mathematical and Physical Sciences|
|Publisher:||American Physical Society|
|Copyright:||© 1997 The American Physical Society|
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