Intramolecular electron diffraction in vibrationally resolved K-shell photoionization of methane

Etienne Plésiat, Luca Argenti, Edwin Kukk, Catalin Miron, Kiyoshi Ueda, Piero Decleva, Fernando Martín

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

Current techniques based on x-ray or electron diffraction are successfully employed for structure determination in condensed matter but are sometimes limited when applied to low density media such as the gas phase. Here we show that vibrationally resolved photoelectron spectroscopy based on x rays generated by third generation synchrotron light sources can be used to infer the structure of isolated molecules in a simple and efficient way. In particular, we show that vibrational ratios obtained from inner shell C 1s photoelectron spectroscopy of isolated methane molecules exhibit pronounced oscillations that are the fingerprints of electron diffraction by the surrounding atomic centers, thus providing the necessary information for the determination of the molecular geometry.

Original languageEnglish
Article number023409
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume85
Issue number2
DOIs
Publication statusPublished - 2012 Feb 16

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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