Observation of Large Water-Cluster Anions with Surface-Bound Excess Electrons
- 7 January 2005
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 307 (5706) , 93-96
Abstract
Anionic water clusters have long been studied to infer properties of the bulk hydrated electron. We used photoelectron imaging to characterize a class of (H 2 O) n – and (D 2 O) n – cluster anions ( n ≤ 200 molecules) with vertical binding energies that are significantly lower than those previously recorded. The data are consistent with a structure in which the excess electron is bound to the surface of the cluster. This result implies that the excess electron in previously observed water-cluster anions, with higher vertical binding energies, was internally solvated. Thus, the properties of those clusters could be extrapolated to those of the bulk hydrated electron.Keywords
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