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http://hdl.handle.net/1942/1452
Title: | Green's function study of the one-electron and shake-up ionization spectra of unsaturated hydrocarbon cage compounds. | Authors: | KNIPPENBERG, Stefan FRANCOIS, Jean-Pierre DELEUZE, Michael |
Issue Date: | 2006 | Publisher: | Wiley | Source: | JOURNAL OF COMPUTATIONAL CHEMISTRY, 27(14). p. 1703-1722 | Abstract: | The valence one-electron and shake-up ionization spectra of stella-2,6-diene, stella-2,6-dione, bicyclo- [2.2.2]-octane-2,5-dione, and bicyclo-[2.2.1]-heptane-2,5-dione have been exhaustively studied, up to the double ionization threshold and beyond, by means of one-particle Green’s function theory. This study is based on calculations employing the outer-valence Green’s function and the third-order algebraic diagrammatic construction schemes, along with a variety of basis sets. A comparison is made with available ultraviolet (He I) photoelectron and (e, 2e) electronimpact ionization spectra, with main focus on the identification of spectral fingerprints for cyclic strains and throughbond pi-conjugation. As a byproduct, our results demonstrate that it is impossible to reliably assign complex (e, 2e) ionization spectra by resorting only to Hartree–Fock or Kohn–Sham orbital energies and to the related electron momentum distributions. | Keywords: | ionization; orbital; relaxation; shake-up; through-bond pi-conjugation | Document URI: | http://hdl.handle.net/1942/1452 | ISSN: | 0192-8651 | e-ISSN: | 1096-987X | DOI: | 10.1002/jcc.20461 | ISI #: | 000240715700008 | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2007 |
Appears in Collections: | Research publications |
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