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Hydrated electrons form when excess electrons are injected into water. In his Perspective, Jordan discusses the properties of these unusual species. He highlights the reports of Paik et al., Bragg et al., and Hammer et al., who use negatively charged water clusters containing 4 to 50 water molecules to elucidate the arrangement of water molecules in the vicinity of a hydrated electron and to study its dynamics. Such cluster studies provide a much higher level of detail than most studies of bulk water and serve as important benchmarks for theoretical studies. Whether they can be extrapolated to bulk water depends, however, on whether the electron resides on the surface or in the interior of the clusters.
The author is in the Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA. E-mail: jordan{at}pitt.edu
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In Science Magazine
REPORTS
Nathan I. Hammer, Joong-Won Shin, Jeffrey M. Headrick, Eric G. Diken, Joseph R. Roscioli, Gary H. Weddle, and Mark A. Johnson (22 October 2004) Science306 (5696), 675.
[DOI: 10.1126/science.1102792] |Abstract »|Full Text »|PDF »
REPORTS
A. E. Bragg, J. R. R. Verlet, A. Kammrath, O. Cheshnovsky, and D. M. Neumark (22 October 2004) Science306 (5696), 669.
[DOI: 10.1126/science.1103527] |Abstract »|Full Text »|PDF »
REPORTS
D. Hern Paik, I-Ren Lee, Ding-Shyue Yang, J. Spencer Baskin, and Ahmed H. Zewail (22 October 2004) Science306 (5696), 672.
[DOI: 10.1126/science.1102827] |Abstract »|Full Text »|PDF »
THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Characterization of Excess Electrons in Water-Cluster Anions by Quantum Simulations.
