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Probing Aqueous Ion...
Probing Aqueous Ions with Non-local Auger Relaxation
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- Gopakumar, Geethanjali, 1992- (author)
- Uppsala universitet,Kemisk och biomolekylär fysik
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- Muchova, E (author)
- Department of Physical Chemistry, University of Chemistry and Technology, Technick ́a 5, Prague 6, 166 28, Czech Republic
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- Unger, Isaak (author)
- Uppsala universitet,Institutionen för fysik och astronomi,Center for Free-Electron Laser Science, DESY, Notkestrasse 85, DE-22607 Hamburg, Germany
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- Malerz, S (author)
- Molecular Physics Department, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
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- Trinter, F (author)
- Molecular Physics Department, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
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- Öhrwall, G (author)
- MAX IV Laboratory, Lund University, Box 118, SE-22100 Lund, Sweden
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- Lipparini, F (author)
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Giuseppe Moruzzi 13, 56124 Pisa, Italy
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- Menucci, B (author)
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Giuseppe Moruzzi 13, 56124 Pisa, Italy
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- Ceolin, D (author)
- Synchrotron SOLEIL, L’Orme des Merisiers Saint-Aubin, BP 48 91192 Gif-sur-Yvette Cedex, Paris, France
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- Caleman, Carl (author)
- Uppsala universitet,Institutionen för fysik och astronomi,Center for Free-Electron Laser Science, DESY, Notkestrasse 85, DE-22607 Hamburg, Germany
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- Wilkinson, I (author)
- Department of Locally-Sensitive Time-Resolved Spectroscopy, Helmholtz-Zentrum Berlin fur Materialien und Energie, 14109 Berlin, Germany
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- Winter, B (author)
- Molecular Physics Department, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
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- Slavicek, P (author)
- Department of Physical Chemistry, University of Chemistry and Technology, Technick ́a 5, Prague 6, 166 28, Czech Republic
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- Hergenhahn, U (author)
- Molecular Physics Department, Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
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- Björneholm, Olle (author)
- Uppsala universitet,Kemisk och biomolekylär fysik
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(creator_code:org_t)
- Royal Society of Chemistry, 2022
- 2022
- English.
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In: Physical Chemistry, Chemical Physics - PCCP. - : Royal Society of Chemistry. - 1463-9076 .- 1463-9084. ; 24:15, s. 8661-8671
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Abstract
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- The decay of core holes is often regarded as a local process, but in some systems, it involves the autoionization of neighbouring atoms or molecules. Here, we explore such non-local autoionization (Intermolecular Coulombic Decay, ICD) of surrounding molecules upon 1s ionization of aqueous-phase Na+, Mg2+ and Al3+ ions. The three ions are isoelectronic but differ in the strength of the ion-water interactions which is manifested in experimental Auger electron spectra by varying intensities. While for strongly interacting Mg2+ and Al3+ the non-local decay is observed, for weakly bound Na+ no signal was measured. Combined with theoretical simulations we provide a microscopic understanding of the non-local decay processes. We assigned the ICD to decay processes ending with two-hole states delocalized between the central ion and neighbouring water. The ICD process is also shown to be highly selective with respect to water molecular orbitals. The ICD lifetime was estimated to be around 40 fs for Mg and 20 fs for Al. Auger spectroscopy thus represents a novel tool for exploring molecules in the liquid phase, providing simultaneously structural and electronic information.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Gopakumar, Geeth ...
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Muchova, E
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Unger, Isaak
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Malerz, S
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Trinter, F
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Öhrwall, G
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show more...
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Lipparini, F
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Menucci, B
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Ceolin, D
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Caleman, Carl
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Wilkinson, I
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Winter, B
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Slavicek, P
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Hergenhahn, U
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Björneholm, Olle
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Atom and Molecul ...
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Physical Chemist ...
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Uppsala University