High-energy molecular-frame photoelectron angular distributions: a molecular bond-length ruler
| Autor: | I. Vela-Peréz, F. Ota, A. Mhamdi, Y. Tamura, J. Rist, N. Melzer, S. Uerken, G. Nalin, N. Anders, D. You, M. Kircher, C. Janke, M. Waitz, F. Trinter, R. Guillemin, M. N. Piancastelli, M. Simon, V. T. Davis, J. B. Williams, R. Dörner, K. Hatada, K. Yamazaki, K. Fehre, Ph. V. Demekhin, K. Ueda, M. S. Schöffler, T. Jahnke |
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| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Physical Chemistry Chemical Physics Physical chemistry, chemical physics 25(19), 13784-13791 (2023). doi:10.1039/D2CP05942H |
| DOI: | 10.3204/pubdb-2023-03427 |
| Popis: | Physical chemistry, chemical physics 25(19), 13784 - 13791 (2023). doi:10.1039/D2CP05942H We present a study on molecular-frame photoelectron angular distributions (MFPADs) of small molecules using circularly polarized synchrotron light. We find that the main forward-scattering peaks of the MFPADs are slightly tilted with respect to the molecular axis. This tilt angle is directly connected to the molecular bond length by a simple, universal formula. We apply the derived formula to several examples of MFPADs of C 1s and O 1s photoelectrons of CO, which have been measured experimentally or obtained by means of ab initio modeling. In addition, we discuss the influence of the back-scattering contribution that is superimposed over the analyzed forward-scattering peak in the case of homo-nuclear diatomic molecules such as N2. Published by RSC Publ., Cambridge |
| Databáze: | OpenAIRE |
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