Verlet, J. R. R. and Bragg, A. E. and Kammrath, A. and Cheshnovsky, O. and Neumark, D. M. (2005) 'Observation of large water-cluster anions with surface-bound excess electrons.', Science., 307 (5706). pp. 93-96.
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.
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|Publisher Web site:||http://dx.doi.org/10.1126/science.1106719|
|Record Created:||14 May 2007|
|Last Modified:||12 Aug 2010 11:52|
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