The Al50Cp*12 cluster - A 138-electron closed shell (L = 6) superatom

Peneé A. Clayborne, Olga Lopez-Acevedo, Robert L. Whetten, Henrik Grönbeck, Hannu Häkkinen

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

Metal clusters stabilized by a surface ligand shell represent an interesting intermediate state of matter between molecular metal-ligand complexes and bulk metal. Such "metalloid" clusters are characterized by the balance between metal-metal bonds in the core and metal-ligand bonds at the exterior of the cluster. In previous studies, the electronic stability for the Al50Cp*12 cluster was not fully understood. We show here that the known cluster Al50Cp*12 can be considered as an analogue to a giant atom ("superatom") with 138 sp electrons organized in concentric angular momentum shells up to L = 6 symmetry. Metal clusters stabilized by a surface ligand shell represent an interesting intermediate state of matter between molecular metal-ligand complexes and bulk metal. We show here that the known cluster Al50Cp*12 can be considered as an analogue to a giant atom ("superatom") with 138 sp electrons organized in concentric angular momentum shells up to L = 6 symmetry.

Original languageEnglish (US)
Pages (from-to)2649-2652
Number of pages4
JournalEuropean Journal of Inorganic Chemistry
Issue number17
DOIs
StatePublished - Jun 2011
Externally publishedYes

Keywords

  • Ab initio calculations
  • Aluminum
  • Cluster compounds
  • Shell models
  • Superatoms

ASJC Scopus subject areas

  • Inorganic Chemistry

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