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Reaction Pathways of Water Dimer Following Single Ionization.

ABSTRACT: 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.

SUBMITTER: Vinklarek IS

PROVIDER: S-EPMC10926096 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature

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Reaction Pathways of Water Dimer Following Single Ionization.

Vinklárek Ivo S IS Bromberger Hubertus H Vadassery Nidin N Jin Wuwei W Küpper Jochen J Trippel Sebastian S

The journal of physical chemistry. A 20240226 9

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 ...[more]

PMID: 38407935

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