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Observation of large water-cluster anions with surface-bound excess electrons

Verlet, J.R.R.; Bragg, A.E.; Kammrath, A.; Cheshnovsky, O.; Neumark, D.M.


A.E. Bragg

A. Kammrath

O. Cheshnovsky

D.M. Neumark


Anionic water clusters have long been studied to infer properties of the bulk hydrated electron. We used photoelectron imaging to characterize a class of (H2O)n– and (D2O)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.


Verlet, J., Bragg, A., Kammrath, A., Cheshnovsky, O., & Neumark, D. (2005). Observation of large water-cluster anions with surface-bound excess electrons. Science, 307(5706), 93-96.

Journal Article Type Article
Publication Date Jan 1, 2005
Deposit Date May 14, 2007
Journal Science
Print ISSN 0036-8075
Electronic ISSN 1095-9203
Publisher American Association for the Advancement of Science
Peer Reviewed Peer Reviewed
Volume 307
Issue 5706
Pages 93-96