Hydration of a structured excess charge distribution: Infrared spectroscopy of the O2−⋅(H2O)n, (1⩽n⩽5) clusters
10.1063/1.1338529
Crossref journal-article
AIP Publishing
The Journal of Chemical Physics (317)
Abstract

To explore how a structured excess charge distribution affects the hydration of an anion, we report mid-IR, argon predissociation spectra for the hydrated superoxide cluster anions, O2−⋅(H2O)n, 1⩽n⩽5. This size range was chosen to establish the evolution of the structures through the putative shell closing [Weber et al., Science 287, 2461 (2000)] for superoxide hydration at the tetrahydrate. Whereas the observed bonding motifs for n⩽4 are those of single water molecules and dimeric subclusters bound to the ion, the pentahydrate spectrum displays strong bands in the region typically associated with ring modes of the water trimer. The present results reinforce the conclusion that the tetrahydrate adopts an especially robust structure in which each water molecule forms a single ionic H bond to one of the lobes of the π* highest occupied molecular orbital in superoxide.

Bibliography

Weber, J. M., Kelley, J. A., Robertson, W. H., & Johnson, M. A. (2001). Hydration of a structured excess charge distribution: Infrared spectroscopy of the O2−⋅(H2O)n, (1⩽n⩽5) clusters. The Journal of Chemical Physics, 114(6), 2698–2706.

Authors 4
  1. J. Mathias Weber (first)
  2. Jude A. Kelley (additional)
  3. William H. Robertson (additional)
  4. Mark A. Johnson (additional)
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Dates
Type When
Created 23 years, 1 month ago (July 26, 2002, 10:14 a.m.)
Deposited 1 year, 6 months ago (Feb. 7, 2024, 10:43 a.m.)
Indexed 4 months, 1 week ago (April 20, 2025, 5:23 a.m.)
Issued 24 years, 6 months ago (Feb. 8, 2001)
Published 24 years, 6 months ago (Feb. 8, 2001)
Published Print 24 years, 6 months ago (Feb. 8, 2001)
Funders 0

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@article{Weber_2001, title={Hydration of a structured excess charge distribution: Infrared spectroscopy of the O2−⋅(H2O)n, (1⩽n⩽5) clusters}, volume={114}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.1338529}, DOI={10.1063/1.1338529}, number={6}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Weber, J. Mathias and Kelley, Jude A. and Robertson, William H. and Johnson, Mark A.}, year={2001}, month=feb, pages={2698–2706} }