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The All-Seeing Eye of Resonant Auger Electron Spectroscopy : A Study on Aqueous Solution Using Tender X-rays

Miteva, Tsveta (author)
Paris-Sorbonne University
Kryzhevoi, Nikolai V. (author)
Heidelberg University
Sisourat, Nicolas (author)
Paris-Sorbonne University
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Nicolas, Christophe (author)
Synchrotron SOLEIL
Pokapanich, Wandared (author)
Nakhon Phanom University
Saisopa, Thanit (author)
Suranaree University of Technology
Songsiriritthigul, Prayoon (author)
Suranaree University of Technology
Rattanachai, Yuttakarn (author)
Rajamangala University of Technology Isan
Dreuw, Andreas (author)
Heidelberg University
Wenzel, Jan (author)
Heidelberg University
Palaudoux, Jérôme (author)
Paris-Sorbonne University
Öhrwall, Gunnar (author)
Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory
Püttner, Ralph (author)
Free University of Berlin
Cederbaum, Lorenz S. (author)
Heidelberg University
Rueff, Jean Pascal (author)
Synchrotron SOLEIL,Paris-Sorbonne University
Céolin, Denis (author)
Synchrotron SOLEIL
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 (creator_code:org_t)
2018-07-18
2018
English 6 s.
In: Journal of Physical Chemistry Letters. - : American Chemical Society (ACS). - 1948-7185. ; 9:15, s. 4457-4462
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • X-ray absorption and Auger electron spectroscopies are demonstrated to be powerful tools to unravel the electronic structure of solvated ions. In this work for the first time, we use a combination of these methods in the tender X-ray regime. This allowed us to address electronic transitions from deep core levels, to probe environmental effects, specifically in the bulk of the solution since the created energetic Auger electrons possess large mean free paths, and moreover, to obtain dynamical information about the ultrafast delocalization of the core-excited electron. In the considered exemplary aqueous KCl solution, the solvated isoelectronic K+ and Cl- ions exhibit notably different Auger electron spectra as a function of the photon energy. Differences appear due to dipole-forbidden transitions in aqueous K+ whose occurrence, according to the performed ab initio calculations, becomes possible only in the presence of solvent water molecules.

Subject headings

NATURVETENSKAP  -- Fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences (hsv//eng)

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