期刊
SCIENCE
卷 307, 期 5706, 页码 93-96出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1106719
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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 less than or equal to 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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