Observation of Large Water-Cluster Anions with Surface-Bound Excess Electrons

作者: JRR Verlet , AE Bragg , A Kammrath , O Cheshnovsky , DM Neumark

DOI: 10.1126/SCIENCE.1106719

关键词: Surface (mathematics)Water clusterMoleculeCluster (physics)Analytical chemistrySolvated electronChemistryBinding energyElectronMultidisciplinary

摘要: Anionic water clusters have long been studied to infer properties of the bulk hydrated electron. We used photoelectron imaging characterize a class (H2O)n– and (D2O)n– cluster anions (n ≤ 200 molecules) with vertical binding energies that are significantly lower than those previously recorded. The data consistent structure in which excess electron is bound surface cluster. This result implies observed water-cluster anions, higher energies, was internally solvated. Thus, could be extrapolated

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