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Resonant Auger decay study of C1s -> pi* core-excited OCS

Travnikova, O.; Miron, C.; Bassler, M.; Feifel, R.; Piancastelli, M. N.; Ristinmaa Sörensen, Stacey LU and Svensson, S. (2009) In Journal of Electron Spectroscopy and Related Phenomena 174(1-3). p.100-106
Abstract
The present work aims at characterizing short-lived C1s((-1)) pi*((1)) core-excited states of the OCS molecule based on the analysis of the vibrational fine structure and lineshape profiles of the high-resolution resonant Auger decay spectra recorded at the excitation energies along the C1s -> pi* resonance in the binding energy region 15-19eV. Very different behavior in terms of lineshape and resonant enhancement is observed for the (A) over tilde, (B) over tilde and (C) over tilde final states. This is explained by (1) the variation in the C-O bond lengths for the states involved in the electronic relaxation and (2) different contributions in terms of Mulliken population to the molecular orbitals determining the electronic character... (More)
The present work aims at characterizing short-lived C1s((-1)) pi*((1)) core-excited states of the OCS molecule based on the analysis of the vibrational fine structure and lineshape profiles of the high-resolution resonant Auger decay spectra recorded at the excitation energies along the C1s -> pi* resonance in the binding energy region 15-19eV. Very different behavior in terms of lineshape and resonant enhancement is observed for the (A) over tilde, (B) over tilde and (C) over tilde final states. This is explained by (1) the variation in the C-O bond lengths for the states involved in the electronic relaxation and (2) different contributions in terms of Mulliken population to the molecular orbitals determining the electronic character of the corresponding states. Since the final-state geometries are known from a number of previous experiments and ab initio calculations, the geometry of the C1s((-1)) pi*((1)) intermediate states can be predicted in analogy with e.g. the N-2, CO2 and N2O molecules. (C) 2009 Elsevier B.V. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Core-hole, Renner-Teller, OCS, Electron spectroscopy, Resonant Auger, Core excitation
in
Journal of Electron Spectroscopy and Related Phenomena
volume
174
issue
1-3
pages
100 - 106
publisher
Elsevier
external identifiers
  • wos:000271347700017
  • scopus:70349244618
ISSN
0368-2048
DOI
10.1016/j.elspec.2009.08.003
language
English
LU publication?
yes
id
4940d218-1402-4f32-9f40-a3074edc6a31 (old id 1505004)
date added to LUP
2009-11-24 17:06:00
date last changed
2017-01-01 06:33:09
@article{4940d218-1402-4f32-9f40-a3074edc6a31,
  abstract     = {The present work aims at characterizing short-lived C1s((-1)) pi*((1)) core-excited states of the OCS molecule based on the analysis of the vibrational fine structure and lineshape profiles of the high-resolution resonant Auger decay spectra recorded at the excitation energies along the C1s -> pi* resonance in the binding energy region 15-19eV. Very different behavior in terms of lineshape and resonant enhancement is observed for the (A) over tilde, (B) over tilde and (C) over tilde final states. This is explained by (1) the variation in the C-O bond lengths for the states involved in the electronic relaxation and (2) different contributions in terms of Mulliken population to the molecular orbitals determining the electronic character of the corresponding states. Since the final-state geometries are known from a number of previous experiments and ab initio calculations, the geometry of the C1s((-1)) pi*((1)) intermediate states can be predicted in analogy with e.g. the N-2, CO2 and N2O molecules. (C) 2009 Elsevier B.V. All rights reserved.},
  author       = {Travnikova, O. and Miron, C. and Bassler, M. and Feifel, R. and Piancastelli, M. N. and Ristinmaa Sörensen, Stacey and Svensson, S.},
  issn         = {0368-2048},
  keyword      = {Core-hole,Renner-Teller,OCS,Electron spectroscopy,Resonant Auger,Core excitation},
  language     = {eng},
  number       = {1-3},
  pages        = {100--106},
  publisher    = {Elsevier},
  series       = {Journal of Electron Spectroscopy and Related Phenomena},
  title        = {Resonant Auger decay study of C1s -> pi* core-excited OCS},
  url          = {http://dx.doi.org/10.1016/j.elspec.2009.08.003},
  volume       = {174},
  year         = {2009},
}