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Normal and resonant...
Normal and resonant Auger spectroscopy of isocyanic acid, HNCO
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- Holzmeier, F. (författare)
- University of Paris-Saclay,Synchrotron SOLEIL
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- Wolf, T. J.A. (författare)
- Stanford Linear Accelerator Center (SLAC)
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- Gienger, C. (författare)
- University of Tübingen
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- Wagner, I. (författare)
- Julius Maximilian University of Würzburg
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- Bozek, J. (författare)
- Synchrotron SOLEIL
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- Nandi, S. (författare)
- Lund University,Lunds universitet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Nicolas, C. (författare)
- Synchrotron SOLEIL
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- Fischer, I. (författare)
- Julius Maximilian University of Würzburg
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- Gühr, M. (författare)
- University of Potsdam
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- Fink, R. F. (författare)
- University of Tübingen
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(creator_code:org_t)
- AIP Publishing, 2018
- 2018
- Engelska.
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Ingår i: Journal of Chemical Physics. - : AIP Publishing. - 0021-9606 .- 1089-7690. ; 149:3
- Relaterad länk:
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http://dx.doi.org/10...
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https://www.osti.gov...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- In this paper, we investigate HNCO by resonant and nonresonant Auger electron spectroscopy at the K-edges of carbon, nitrogen, and oxygen, employing soft X-ray synchrotron radiation. In comparison with the isosteric but linear CO2 molecule, spectra of the bent HNCO molecule are similar but more complex due to its reduced symmetry, wherein the degeneracy of the π-orbitals is lifted. Resonant Auger electron spectra are presented at different photon energies over the first core-excited 1s → 10a′ resonance. All Auger electron spectra are assigned based on ab initio configuration interaction computations combined with the one-center approximation for Auger intensities and moment theory to consider vibrational motion. The calculated spectra were scaled by a newly introduced energy scaling factor, and generally, good agreement is found between experiment and theory for normal as well as resonant Auger electron spectra. A comparison of resonant Auger spectra with nonresonant Auger structures shows a slight broadening as well as a shift of the former spectra between -8 and -9 eV due to the spectating electron. Since HNCO is a small molecule and contains the four most abundant atoms of organic molecules, the reported Auger electron decay spectra will provide a benchmark for further theoretical approaches in the computation of core electron spectra.
Ämnesord
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
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- art (ämneskategori)
- ref (ämneskategori)
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Holzmeier, F.
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Wolf, T. J.A.
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Gienger, C.
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Wagner, I.
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Bozek, J.
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Nandi, S.
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Nicolas, C.
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Fischer, I.
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Gühr, M.
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Fink, R. F.
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Lunds universitet