Journal Article

PUBDB-2023-03427

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png High-energy molecular-frame photoelectron angular distributions: a molecular bond-length ruler

Vela-Peréz, I. ; Ota, F.Extern*XFEL.EU* ; Mhamdi, A. ; Tamura, Y. ; Rist, J.Extern* ; Melzer, N.Extern*XFEL.EU* ; Uerken, S. ; Nalin, G.Extern*XFEL.EU* ; Anders, N.Extern*XFEL.EU* ; You, D.Extern*XFEL.EU* ; Kircher, M.Extern*XFEL.EU* ; Janke, C.Extern* ; Waitz, M.Extern* ; Trinter, F. (Corresponding author)Extern*XFEL.EU* ; Guillemin, R.Extern* ; Piancastelli, M. N.Extern* ; Simon, M.Extern* ; Davis, V. T. ; Williams, J.Extern* ; Doerner, R.Extern* ; Hatada, K.Extern*XFEL.EU* ; Yamazaki, K.Extern* ; Fehre, K.Extern*XFEL.EU* ; Demekhin, P. (Corresponding author)Extern* ; Ueda, K.Extern* ; Schoeffler, M.Extern*XFEL.EU* ; Jahnke, T. (Corresponding author)XFEL.EU*DESY*

2023
RSC Publ. Cambridge

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Please use a persistent id in citations: doi:10.1039/D2CP05942H  doi:10.3204/PUBDB-2023-03427

Abstract: 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.

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Contributing Institute(s):

1. PETRA-S (FS-PETRA-S)
2. DOOR-User (DOOR ; HAS-User)
3. SQS (XFEL_E2_SQS)

Research Program(s):

1. 631 - Matter – Dynamics, Mechanisms and Control (POF4-631) (POF4-631)
2. SFB 1319 C03 - Trennung und Aufreinigung von Enantiomer-Gemischen mittels Quantenkontrolle (C03) (389895275) (389895275)

Experiment(s):

1. Measurement at external facility

Appears in the scientific report 2023

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Essential Science Indicators ; IF < 5 ; JCR ; National-Konsortium ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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