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Following excited-s...
Following excited-state chemical shifts in molecular ultrafast x-ray photoelectron spectroscopy
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Mayer, D. (author)
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Lever, F. (author)
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Picconi, D. (author)
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Metje, J. (author)
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Alisauskas, S. (author)
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Calegari, F. (author)
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Düsterer, S. (author)
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Ehlert, C. (author)
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- Feifel, Raimund (author)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)
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Niebuhr, M. (author)
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Manschwetus, B. (author)
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Kuhlmann, M. (author)
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Mazza, T. (author)
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Robinson, M. S. (author)
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- Squibb, Richard J. (author)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)
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Trabattoni, A. (author)
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- Wallner, Måns, 1992 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU)
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Saalfrank, P. (author)
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Wolf, T. J. A. (author)
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Gühr, M. (author)
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(creator_code:org_t)
- 2022-01-11
- 2022
- English.
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In: Nature Communications. - : Springer Science and Business Media LLC. - 2041-1723. ; 13:1
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https://www.nature.c...
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The conversion of photon energy into other energetic forms in molecules is accompanied by charge moving on ultrafast timescales. We directly observe the charge motion at a specific site in an electronically excited molecule using time-resolved x-ray photoelectron spectroscopy (TR-XPS). We extend the concept of static chemical shift from conventional XPS by the excited-state chemical shift (ESCS), which is connected to the charge in the framework of a potential model. This allows us to invert TR-XPS spectra to the dynamic charge at a specific atom. We demonstrate the power of TR-XPS by using sulphur 2p-core-electron-emission probing to study the UV-excited dynamics of 2-thiouracil. The method allows us to discover that a major part of the population relaxes to the molecular ground state within 220–250 fs. In addition, a 250-fs oscillation, visible in the kinetic energy of the TR-XPS, reveals a coherent exchange of population among electronic states. © 2022, The Author(s).
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- chemical composition
- kinetic energy
- molecular analysis
- X-ray spectroscopy
Publication and Content Type
- ref (subject category)
- art (subject category)
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To the university's database
- By the author/editor
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Mayer, D.
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Lever, F.
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Picconi, D.
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Metje, J.
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Alisauskas, S.
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Calegari, F.
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show more...
-
Düsterer, S.
-
Ehlert, C.
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Feifel, Raimund
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Niebuhr, M.
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Manschwetus, B.
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Kuhlmann, M.
-
Mazza, T.
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Robinson, M. S.
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Squibb, Richard ...
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Trabattoni, A.
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Wallner, Måns, 1 ...
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Saalfrank, P.
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Wolf, T. J. A.
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Gühr, M.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
- Articles in the publication
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Nature Communica ...
- By the university
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University of Gothenburg