University of Oulu

Pelimanni, E., Hautala, L., Hans, A., Kivimäki, A., Kook, M., Küstner-Wetekam, C., Marder, L., Patanen, M., & Huttula, M. (2021). Core and Valence Level Photoelectron Spectroscopy of Nanosolvated KCl. The Journal of Physical Chemistry A, 125(22), 4750–4759.

Core and valence level photoelectron spectroscopy of nanosolvated KCl

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Author: Pelimanni, Eetu1; Hautala, Lauri1; Hans, Andreas1,2;
Organizations: 1Nano and Molecular Systems Research Unit, Faculty of Science, University of Oulu, FI-90014 Oulu, Finland
2Universität Kassel, Institut für Physik und CINSaT, Heinrich-Plett-Straße 40, 34132 Kassel, Germany
3MAX IV Laboratory, Lund University, P.O. Box 118, SE-22100 Lund, Sweden
4Institute of Physics, University of Tartu, W. Ostwaldi 1, EE-50411 Tartu, Estonia
5Universität Kassel, Institut für Physik und CINSaT, 34132 Kassel, Germany
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 1.5 MB)
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Language: English
Published: American Chemical Society, 2021
Publish Date: 2022-05-25


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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Series: The journal of physical chemistry. A
ISSN: 1089-5639
ISSN-E: 1520-5215
ISSN-L: 1089-5639
Volume: 125
Issue: 22
Pages: 4750 - 4759
DOI: 10.1021/acs.jpca.1c01539
Type of Publication: A1 Journal article – refereed
Field of Science: 114 Physical sciences
Funding: The authors gratefully acknowledge funding from the Academy of Finland (project grants Nos. 296338, 306984, 328467, and InStreams profiling grant No. 326291). E.P. acknowledges funding from the Finnish Cultural Foundation, North Ostrobothnia Regional fund (60192221). A.H., C.K.-W. and L.M. acknowledge funding by the Deutsche Forschungsgemeinschaft (DFG) (Project No. 328961117—SFB 1319 ELCH). M.K. acknowledges support by the Graduate School of Functional Materials and Technologies, University of Tartu (2014-2020.4.01.16-0027), and Centres of Excellence project “Advanced materials and high-technology devices for sustainable energetics, sensorics and nanoelectronics” TK141 (2014-2020.4.01.15-0011). The authors are thankful to MAX IV Laboratory for time on Beamline FinEstBeAMS under Proposal 20190638. Research conducted at MAX IV, a Swedish national user facility, is supported by the Swedish Research council under contract 2018-07152, the Swedish Governmental Agency for Innovation Systems under contract 2018-04969, and Formas under contract 2019-02496.
Academy of Finland Grant Number: 296338
Detailed Information: 296338 (Academy of Finland Funding decision)
306984 (Academy of Finland Funding decision)
328467 (Academy of Finland Funding decision)
Dataset Reference: Supporting information:
Copyright information: © 2021 The Authors. Published by American Chemical Society.