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Fehre, K.; Novikovskiy, N. M.; Grundmann, S.; Kastirke, G.; Eckart, S.; Trinter, F.; Rist, J.; Hartung, A.; Trabert, D.; Janke, C.; Nalin, G.; Pitzer, M.; Zeller, S.; Wiegandt, F.; Weller, M.; Kircher, M.; Hofmann, M.; Schmidt, L. Ph. H.; Knie, A.; Hans, A.; Ltaief, L. Ben; Ehresmann, A.; Berger, R.; Fukuzawa, H.; Ueda, K.; Schmidt-Böcking, H.; Williams, J. B.; Jahnke, T.; Dörner, R.; Schöffler, M. S.; Demekhin, Ph. V.
Physical review letters, 09/2021, Volume: 127, Issue: 10Journal Article
We report on a joint experimental and theoretical study of photoelectron circular dichroism (PECD) in methyloxirane. By detecting O 1s photoelectrons in coincidence with fragment ions, we deduce the molecule's orientation and photoelectron emission direction in the laboratory frame. Thereby, we retrieve a fourfold differential PECD clearly beyond 50%. This strong chiral asymmetry is reproduced by ab initio electronic structure calculations. Providing such a pronounced contrast makes PECD of fixed-in-space chiral molecules an even more sensitive tool for chiral recognition in the gas phase.
