Relationship between interference pattern and molecular orbital shape in (e, 2e) electron momentum profiles of SF6

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13 Citations (Scopus)

Abstract

We report an (e, 2e) study on interference effects in the spherically-averaged electron momentum density distributions of the five outermost molecular orbitals (MOs) of SF6, which are each constructed from the 2p atomic orbitals (AOs) on the F atoms. The (e, 2e) experiment was performed in the symmetric noncoplanar geometry and at an incident electron energy of 1.2 keV. Interference patterns for each MO have then been obtained by dividing the experimental data by distorted-wave-Born-approximation cross section for an isolated F 2p AO. A detailed analysis of the results shows that the interference patterns afford a rare opportunity to experimentally clarify symmetries of the MOs. Furthermore, it is demonstrated that they provide information about not only the molecular geometry but also the spatial orientation of the constituent AOs even for this relatively complicated molecule.

Original languageEnglish
Pages (from-to)78-86
Number of pages9
JournalJournal of Electron Spectroscopy and Related Phenomena
Volume209
DOIs
Publication statusPublished - 2016 May 1

Keywords

  • (e, 2e) spectroscopy
  • Bond oscillation
  • Electron momentum spectroscopy
  • Momentum space wave function
  • SF

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Radiation
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Spectroscopy
  • Physical and Theoretical Chemistry

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