Reaction Pathways of Water Dimer Following Single Ionization

Water dimer (H2O)2a vital component of the earth’s atmosphereis an important prototypical hydrogen-bonded system. It provides direct insights into fundamental chemical and biochemical processes, e.g., proton transfer and ionic supramolecular dynamics, occurring in astro- and atmospheric chemistry....

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Bibliographic Details
Published in:The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory Molecules, spectroscopy, kinetics, environment, & general theory, 2024-03, Vol.128 (9), p.1593-1599
Main Authors: Vinklárek, Ivo S., Bromberger, Hubertus, Vadassery, Nidin, Jin, Wuwei, Küpper, Jochen, Trippel, Sebastian
Format: Article
Language:English
Subjects:
A: Structure, Spectroscopy, and Reactivity of Molecules and Clusters
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Summary:Water dimer (H2O)2a vital component of the earth’s atmosphereis an important prototypical hydrogen-bonded system. It provides direct insights into fundamental chemical and biochemical processes, e.g., proton transfer and ionic supramolecular dynamics, occurring in astro- and atmospheric chemistry. Exploiting a purified molecular beam of water dimer and multimass ion imaging, we report the simultaneous detection of all generated ion products of (H2O)2 + fragmentation following single ionization. Detailed information about ion yields and reaction energetics of 13 ion-radical pathways, 6 of which are new, of (H2O)2 + are presented, including strong 18O-isotope effects.
ISSN:1089-5639
1520-5215
DOI:10.1021/acs.jpca.3c07958