Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Comparison of the size of excitonic effects in molecular π systems as measured by core and valence spectroscopies

Schnadt, J. LU orcid ; Schiessling, J. LU and Brühwiler, P. A. (2005) In Chemical Physics 312(1-3). p.39-45
Abstract

In aromatic molecules characterised by extended π-systems valence and core excitons can have very similar binding energies. This is shown for a number of compounds, and in each case the core exciton binding energies are analysed in terms of the Coulomb screening and rehybridisation contributions. The latter semiquantitatively explain the binding energy differences between the valence and core excitons. This suggests that core and valence excitons have a similar spatial extent in such systems. In favourable cases core level techniques can thus be used to elucidate valence excited state properties.

Please use this url to cite or link to this publication:
author
; and
publishing date
type
Contribution to journal
publication status
published
keywords
Aromatic molecules, Core excitons, Core level spectroscopies, Core-hole screening, Molecular π-systems, Valence excitons, X-ray absorption spectroscopy
in
Chemical Physics
volume
312
issue
1-3
pages
7 pages
publisher
Elsevier
external identifiers
  • scopus:15744369035
ISSN
0301-0104
DOI
10.1016/j.chemphys.2004.11.019
language
English
LU publication?
no
id
c879e5a7-f259-4ea3-82ba-714cde84c938
date added to LUP
2018-08-07 22:06:48
date last changed
2022-02-23 02:16:50
@article{c879e5a7-f259-4ea3-82ba-714cde84c938,
  abstract     = {{<p>In aromatic molecules characterised by extended π-systems valence and core excitons can have very similar binding energies. This is shown for a number of compounds, and in each case the core exciton binding energies are analysed in terms of the Coulomb screening and rehybridisation contributions. The latter semiquantitatively explain the binding energy differences between the valence and core excitons. This suggests that core and valence excitons have a similar spatial extent in such systems. In favourable cases core level techniques can thus be used to elucidate valence excited state properties.</p>}},
  author       = {{Schnadt, J. and Schiessling, J. and Brühwiler, P. A.}},
  issn         = {{0301-0104}},
  keywords     = {{Aromatic molecules; Core excitons; Core level spectroscopies; Core-hole screening; Molecular π-systems; Valence excitons; X-ray absorption spectroscopy}},
  language     = {{eng}},
  month        = {{06}},
  number       = {{1-3}},
  pages        = {{39--45}},
  publisher    = {{Elsevier}},
  series       = {{Chemical Physics}},
  title        = {{Comparison of the size of excitonic effects in molecular π systems as measured by core and valence spectroscopies}},
  url          = {{http://dx.doi.org/10.1016/j.chemphys.2004.11.019}},
  doi          = {{10.1016/j.chemphys.2004.11.019}},
  volume       = {{312}},
  year         = {{2005}},
}