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Core and Valence Level Photoelectron Spectroscopy of Nanosolvated KCl

Pelimanni, Eetu ; Hautala, Lauri ; Hans, Andreas ; Kivimäki, Antti LU ; Kook, Mati ; Küstner-Wetekam, Catmarna ; Marder, Lutz ; Patanen, Minna and Huttula, Marko (2021) In Journal of Physical Chemistry A 125(22). p.4750-4759
Abstract

The solvation of alkali and halide ions in the aqueous environment has been a subject of intense experimental and theoretical research with multidisciplinary interests; yet, a comprehensive molecular-level understanding has still not been obtained. In recent years, electron spectroscopy has been increasingly applied to study the electronic and structural properties of aqueous ions with implications, especially in atmospheric chemistry. In this work, we report core and valence level (Cl 2p, Cl 3p, and K 3p) photoelectron spectra of the common alkali halide, KCl, doped in gas-phase water clusters in the size range of a few hundred water molecules. The results indicate that the electronic structure of these nanosolutions shows a distinct... (More)

The solvation of alkali and halide ions in the aqueous environment has been a subject of intense experimental and theoretical research with multidisciplinary interests; yet, a comprehensive molecular-level understanding has still not been obtained. In recent years, electron spectroscopy has been increasingly applied to study the electronic and structural properties of aqueous ions with implications, especially in atmospheric chemistry. In this work, we report core and valence level (Cl 2p, Cl 3p, and K 3p) photoelectron spectra of the common alkali halide, KCl, doped in gas-phase water clusters in the size range of a few hundred water molecules. The results indicate that the electronic structure of these nanosolutions shows a distinct character from that observed at the liquid-vapor interface in liquid microjets and ambient pressure setups. Insights are provided into the unique solvation properties of ions in a nanoaqueous environment, emerging properties of bulk electrolyte solutions with growing cluster size, and sensitivity of the electronic structure to varying solvation configurations.

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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Physical Chemistry A
volume
125
issue
22
pages
10 pages
publisher
The American Chemical Society (ACS)
external identifiers
  • pmid:34034483
  • scopus:85108020256
ISSN
1089-5639
DOI
10.1021/acs.jpca.1c01539
language
English
LU publication?
yes
id
d35e06b9-9700-46be-b1d2-020ba2e1c4a5
date added to LUP
2021-07-15 14:28:44
date last changed
2024-06-01 12:51:06
@article{d35e06b9-9700-46be-b1d2-020ba2e1c4a5,
  abstract     = {{<p>The solvation of alkali and halide ions in the aqueous environment has been a subject of intense experimental and theoretical research with multidisciplinary interests; yet, a comprehensive molecular-level understanding has still not been obtained. In recent years, electron spectroscopy has been increasingly applied to study the electronic and structural properties of aqueous ions with implications, especially in atmospheric chemistry. In this work, we report core and valence level (Cl 2p, Cl 3p, and K 3p) photoelectron spectra of the common alkali halide, KCl, doped in gas-phase water clusters in the size range of a few hundred water molecules. The results indicate that the electronic structure of these nanosolutions shows a distinct character from that observed at the liquid-vapor interface in liquid microjets and ambient pressure setups. Insights are provided into the unique solvation properties of ions in a nanoaqueous environment, emerging properties of bulk electrolyte solutions with growing cluster size, and sensitivity of the electronic structure to varying solvation configurations. </p>}},
  author       = {{Pelimanni, Eetu and Hautala, Lauri and Hans, Andreas and Kivimäki, Antti and Kook, Mati and Küstner-Wetekam, Catmarna and Marder, Lutz and Patanen, Minna and Huttula, Marko}},
  issn         = {{1089-5639}},
  language     = {{eng}},
  number       = {{22}},
  pages        = {{4750--4759}},
  publisher    = {{The American Chemical Society (ACS)}},
  series       = {{Journal of Physical Chemistry A}},
  title        = {{Core and Valence Level Photoelectron Spectroscopy of Nanosolvated KCl}},
  url          = {{http://dx.doi.org/10.1021/acs.jpca.1c01539}},
  doi          = {{10.1021/acs.jpca.1c01539}},
  volume       = {{125}},
  year         = {{2021}},
}