TY  - JOUR
AU  - Bloss, Dana
AU  - Dupuy, Remi
AU  - Trinter, Florian
AU  - Unger, Isaak
AU  - Walsh, Noelle
AU  - Oehrwall, Gunnar
AU  - Golchert, Niklas
AU  - Klassen, Gabriel
AU  - Krone, Adrian Peter
AU  - Terao, Yusaku
AU  - Viehmann, Johannes
AU  - Wülfing, Lasse
AU  - Richter, Clemens
AU  - Buttersack, Tillmann
AU  - Cederbaum, Lorenz
AU  - Hergenhahn, Uwe
AU  - Bjoerneholm, Olle
AU  - Ehresmann, Arno
AU  - Hans, Andreas
TI  - Site- and Energy-Selective Low-Energy Electron Emission by X-rays in the Aqueous Phase
JO  - Journal of the American Chemical Society
VL  - 147
IS  - 25
SN  - 0002-7863
CY  - Washington, DC
PB  - ACS Publications
M1  - PUBDB-2025-02450
SP  - 22115 - 22120
PY  - 2025
N1  - Open Access
AB  - Low-energy-electron emission from resonant Auger final states via intermolecular Coulombic decay (RA-ICD) has previously been described as a promising scenario for controlling radiation damage for medical purposes, but it has so far only been observed in prototypical atomic and molecular van der Waals dimers and clusters. Here, we report the experimental observation of RA-ICD in an aqueous solution. We show that for solvated Ca2+ ions, the emission can be very efficiently controlled by tuning the photon energy of exciting X-rays to inner-shell resonances of the ions. Our results provide the next step from demonstrating RA-ICD in relatively simple prototype systems to understanding the relevance and potential applications of ICD in real-life scenarios.
LB  - PUB:(DE-HGF)16
C6  - pmid:40513115
DO  - DOI:10.1021/jacs.5c06436
UR  - https://bib-pubdb1.desy.de/record/633849
ER  -