Photoelectron spectroscopy of mass-selected metal-water cluster negative ions: Cu-(H2O)n and Na-(H2O)n

F. Misaizu, K. Tsukamoto, M. Sanekata, K. Fuke

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16 Citations (Scopus)


The electronic structures of hydrated metal-atom clusters have been investigated by negative-ion photoelectron spectroscopy. We have obtained the photoelectron spectra of Cu-(H2O)n with n=0-4 and Na-(H2O)n with n=0-12. For the former clusters, we also detected the electron detachment from the CuOH-(H2O)n-1 which coexists with Cu-(H2O)n. The observed bands for both Cu-(H2O)n and Na-(H2O)n were all assigned to the transitions to the states originating in those of the metal atoms, which are shifted as a result of hydration. This result implies that the ground states of the neutral clusters still have a one-center character at the size range examined. In contrast, for the Na-water clusters, increasing character of the Rydberg-type ion-pair state in the negative-ion state is suggested from the vertical-detachment-energy dependence on the solvent number.

Original languageEnglish
Pages (from-to)405-410
Number of pages6
JournalSurface Review and Letters
Issue number1
Publication statusPublished - 1996 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry


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