Photoelectron circular dichroism of O 1s-photoelectrons of uniaxially oriented trifluoromethyloxirane: energy dependence and sensitivity to molecular configuration
| Autor: | C. Küstner-Wetekam, Juliane Siebert, N. M. Novikovskiy, Max Kircher, G. Kastirke, L. Marder, J. Viehmann, Reinhard Dörner, M. Hofmann, Joshua B. Williams, Martin Maurer, Raghu Tomar, K. Fehre, Markus Schöffler, D. Trabert, Markus Ilchen, André Knie, Kiyoshi Ueda, G. Nalin, Sven Grundmann, Florian Trinter, Arnab Khan, Philipp V. Demekhin, M. Waitz, Till Jahnke, Isabel Vela-Perez, Rudolf Pietschnig, Denis Kargin, Dimitrios Tsitsonis, Hironobu Fukuzawa, Nils Anders |
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| Rok vydání: | 2021 |
| Předmět: |
Chemical Physics (physics.chem-ph)
Circular dichroism Materials science FOS: Physical sciences General Physics and Astronomy Synchrotron radiation 02 engineering and technology Molecular configuration Photoelectric effect 021001 nanoscience & nanotechnology Kinetic energy 01 natural sciences Molecular physics 3. Good health Ion Ionization Physics - Chemical Physics 0103 physical sciences ddc:540 Physics - Atomic and Molecular Clusters Physical and Theoretical Chemistry Atomic and Molecular Clusters (physics.atm-clus) 010306 general physics 0210 nano-technology Spectroscopy |
| Zdroj: | Physical chemistry, chemical physics 23(32), 17248-17258 (2021). doi:10.1039/D1CP02462K Physical Chemistry Chemical Physics |
| ISSN: | 1463-9084 |
| Popis: | The photoelectron circular dichroism (PECD) of the O 1s-photoelectrons of trifluoromethyloxirane(TFMOx) is studied experimentally and theoretically for different photoelectron kinetic energies. The experiments were performed employing circularly polarized synchrotron radiation and coincidentelectron and fragment ion detection using Cold Target Recoil Ion Momentum Spectroscopy. The corresponding calculations were performed by means of the Single Center method within the relaxed-core Hartree-Fock approximation. We concentrate on the energy dependence of the differential PECD of uniaxially oriented TFMOx molecules, which is accessible through the employed coincident detection. We also compare results for differential PECD of TFMOx to those obtained for the equivalent fragmentation channel and similar photoelectron kinetic energy of methyloxirane (MOx), studied in our previous work. Thereby, we investigate the influence of the substitution of the methyl-group by the trifluoromethyl-group at the chiral center on the molecular chiral response. Finally, the presently obtained angular distribution parameters are compared to those available in literature. 6 figs |
| Databáze: | OpenAIRE |
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