Probing Superatomic Orbitals of Sc-Doped and Undoped Silver Cluster Anions via Photoelectron Angular Anisotropy

HANDLE Open Access
  • Minamikawa, K.
    Department of Chemistry, Faculty of Science, Kyushu University
  • Nishizato, T.
    Department of Chemistry, Faculty of Science, Kyushu University
  • Hashimoto, H.
    Department of Chemistry, Faculty of Science, Kyushu University
  • Matsumoto, K.
    Department of Chemistry, Faculty of Science, Kyushu University
  • Arakawa, M.
    Department of Chemistry, Faculty of Science, Kyushu University
  • Horio, T.
    Department of Chemistry, Faculty of Science, Kyushu University
  • Terasaki, A.
    Department of Chemistry, Faculty of Science, Kyushu University

Description

Valence s electrons in alkali- or coinage-metal clusters are conceived to delocalize over the metal frameworks. The electrons occupy so-called superatomic orbitals (SAOs, i.e., 1S, 1P, 1D, 2S, 1F, ...), which provide an essential picture for understanding the size-dependent, unique properties of these metal clusters. While such electronic shells are unambiguously identified in their photoelectron spectra and supported by electronic structure calculations, characterization of SAOs in heteroatom-doped metal clusters has remained elusive as the doping significantly affects its energy levels and even alters the ordering of SAOs. Here, we present a photoelectron imaging study to explore SAOs formed in Sc-doped and undoped silver cluster anions, Ag_NSc^– (N = 15, 16) and Ag_N^– (N = 18, 19). Photoelectron angular distributions from their outermost SAOs are clearly visualized, whose characters are analyzed with the aid of density functional theory calculations. The present methodology enables us to explore not only the quantized energy levels but also the spatial distributions of SAOs formed in various metal cluster anions.

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Details 詳細情報について

  • CRID
    1050018816307509504
  • ISSN
    19487185
  • HANDLE
    2324/7178538
  • Text Lang
    en
  • Article Type
    journal article
  • Data Source
    • IRDB

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