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Surface or Internal Hydration - Does It Really Matter?
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DOI：10.1021/jasms.2c00290.png)
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摘要
En 中文
The precise location of an ion or electron, whether it is internally solvated or residing on the surface of a water cluster, remains an intriguing question. Subtle differences in the hydrogen bonding network may lead to a preference for one or the other. Here we discuss spectroscopic probes of the structure of gas-phase hydrated ions in combination with quantum chemistry, as well as H/D exchange as a means of structure elucidation. With the help of nanocalorimetry, we look for thermochemical signatures of surface vs internal solvation. Examples of strongly size-dependent reactivity are reviewed which illustrate the influence of surface vs internal solvation on unimolecular rearrangements of the cluster, as well as on the rate and product distribution of ion-molecule reactions.
Keyword:
TRANSITION-METAL IONS
PROTONATED WATER CLUSTERS
PHOTON DISSOCIATION SPECTROSCOPY
INFRARED RADIATIVE DISSOCIATION
COLLISION-INDUCED DISSOCIATION
MAGNESIUM CATIONS MG+(H2O)(N)
DIOXIDE RADICAL-ANIONS
GAS-PHASE
CARBON-DIOXIDE
ELECTRON CLUSTERS
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