Structural evolution of medium-sized gold clusters Aun - (n = 36, 37, 38): Appearance of bulk-like face centered cubic fragment

Nan Shao, Wei Huang, Wai Ning Mei, Lai Sheng Wang, Qin Wu, Xiao Cheng Zeng

Research output: Contribution to journalArticle

31 Scopus citations

Abstract

We report a joint experimental and theoretical study of the structural evolution of medium-sized gold clusters. We find that the most stable structures of Au36- to Au38- exhibit core-shell type structures all with a highly robust tetrahedral four-atom core. All three clusters are observed to possess two coexisting isomers in the cluster beam. The appearance of a fragment of the face centered cubic (FCC) bulk gold, that is, the pyramidal Au20-, at the size of Au 38- implies that the cluster-to-bulk transformation starts to emerge at the medium size range. It is expected that larger pyramidal-like intermediates may emerge in later medium-to large-sized Au clusters beyond Au38-.

Original languageEnglish (US)
Pages (from-to)6887-6892
Number of pages6
JournalJournal of Physical Chemistry C
Volume118
Issue number13
DOIs
StatePublished - Apr 3 2014

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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