Observation of Enhanced Chiral Asymmetries in the Inner-Shell Photoionization of Uniaxially Oriented Methyloxirane Enantiomers

Maurice Tia, Martin Pitzer, Gregor Kastirke, Janine Gatzke, Hong Keun Kim, Florian Trinter, Jonas Rist, Alexander Hartung, Daniel Trabert, Juliane Siebert, Kevin Henrichs, Jasper Becht, Stefan Zeller, Helena Gassert, Florian Wiegandt, Robert Wallauer, Andreas Kuhlins, Carl Schober, Tobias Bauer, Natascha WechselbergerPhillip Burzynski, Jonathan Neff, Miriam Weller, Daniel Metz, Max Kircher, Markus Waitz, Joshua B. Williams, Lothar Ph H. Schmidt, Anne D. Müller, André Knie, Andreas Hans, Ltaief Ben Ltaief, Arno Ehresmann, Robert Berger, Hironobu Fukuzawa, Kiyoshi Ueda, Horst Schmidt-Böcking, Reinhard Dörner, Till Jahnke, Philipp V. Demekhin, Markus Schöffler

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

Most large molecules are chiral in their structure: they exist as two enantiomers, which are mirror images of each other. Whereas the rovibronic sublevels of two enantiomers are almost identical (neglecting a minuscular effect of the weak interaction), it turns out that the photoelectric effect is sensitive to the absolute configuration of the ionized enantiomer. Indeed, photoionization of randomly oriented enantiomers by left or right circularly polarized light results in a slightly different electron flux parallel or antiparallel with respect to the photon propagation direction - an effect termed photoelectron circular dichroism (PECD). Our comprehensive study demonstrates that the origin of PECD can be found in the molecular frame electron emission pattern connecting PECD to other fundamental photophysical effects such as the circular dichroism in angular distributions (CDAD). Accordingly, distinct spatial orientations of a chiral molecule enhance the PECD by a factor of about 10.

Original languageEnglish
Pages (from-to)2780-2786
Number of pages7
JournalJournal of Physical Chemistry Letters
Volume8
Issue number13
DOIs
Publication statusPublished - 2017 Jul 6

ASJC Scopus subject areas

  • Materials Science(all)
  • Physical and Theoretical Chemistry

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