Experimental and theoretical characterization of aluminum-based binary superatoms of Al12X and their cluster salts

Minoru Akutsu, Kiichirou Koyasu, Junko Atobe, Natsuki Hosoya, Ken Miyajima, Masaaki Mitsui, Atsushi Nakajima

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73 Citations (Scopus)


The geometric and electronic structures of aluminum binary clusters, AlnX (X = Si and P), have been investigated, using mass spectrometry, anion photoelectron spectroscopy, photoionization spectroscopy, and theoretical calculations. Both experimental and theoretical results show that Al 12Si has a high ionization energy and low electron affinity and Al12P has a low ionization energy, both with the icosahedral structure having a central Si or P atom, revealing that Al12Si and Al12P exhibit rare-gas-like and alkali superatoms, respectively. Experiments confirmed the possibility that the change in the total number of valence electrons on substitution could produce ionically bound binary superatom complexes, the binary cluster salts Al12P+F- and Al12B-Cs+.

Original languageEnglish
Pages (from-to)12073-12076
Number of pages4
JournalJournal of Physical Chemistry A
Issue number44
Publication statusPublished - 2006 Nov 9

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry


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