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High-energy molecular-frame photoelectron angular distributions: a molecular bond-length ruler
- Source :
- Physical Chemistry Chemical Physics, Physical chemistry, chemical physics 25(19), 13784-13791 (2023). doi:10.1039/D2CP05942H
- Publication Year :
- 2023
- Publisher :
- Deutsches Elektronen-Synchrotron, DESY, Hamburg, 2023.
-
Abstract
- Physical chemistry, chemical physics 25(19), 13784 - 13791 (2023). doi:10.1039/D2CP05942H<br />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.<br />Published by RSC Publ., Cambridge
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Physical Chemistry Chemical Physics, Physical chemistry, chemical physics 25(19), 13784-13791 (2023). doi:10.1039/D2CP05942H
- Accession number :
- edsair.doi.dedup.....8a3486b06d0de91d4f67c99126bdabc7
- Full Text :
- https://doi.org/10.3204/pubdb-2023-03427