Complete breakdown of the quasiparticle picture for inner-valence electrons: Hydrogen cyanide and formic acid
✍ Scribed by J. Schirmer; L.S. Cederbaum; W. Domcke; W. Von Niessen
- Publisher
- Elsevier Science
- Year
- 1978
- Tongue
- English
- Weight
- 487 KB
- Volume
- 57
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
X%e position and the relative intensity of the lines in the ionization spectrum of HCN and HCOOH are calculated by a many_body Green's function method. The results show that the concepts developed for the interpretation of the photoelectron spectra of the outer-valence shell of atoms and molecules are inappIicable in the inner-valence region. There is no longer any simple correspondence between *he occupied molecular orbitals and the bands observed in the ionization spectrum. Correlation effects are so strcng that the usual distinction between main lines and satellite lines cannot be maintain-ed_ The theoretical results are used to interpret pubiished He II photoelectron spectra of HCN and HCOOH.