Ionization energies of aluminum-cesium bimetallic clusters (AlnCsm)

Kuniyoshi Hoshino, Katsura Watanabe, Yuji Konishi, Testuya Taguwa, Atsushi Nakajima, Koji Kaya

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39 Citations (Scopus)


Aluminum-cesium bimetallic clusters (AlnCsm) were produced by the combination of laser vaporization and a high-temperature pulsed nozzle. To investigate their electronic structures, ionization energies (EiS) of the AlnCsm clusters were measured using a tunable ultraviolet laser combined with a time-of-flight mass spectrometer. In general, their Eis decrease by 0.4-1.0 eV with increasing number of cesium atoms, but discontinuous changes in Eis can be also observed, which are attributed to electronic shell structures; completeness of electron shell by the addition of a Cs atom induces high Ei, and an excess electron from the Cs atom results in large Ei, decrement. The electronic stability of the AlnCsmclusters can be also examined by their abundance.

Original languageEnglish
Pages (from-to)499-503
Number of pages5
JournalChemical Physics Letters
Issue number4-6
Publication statusPublished - 1994 Dec 30

ASJC Scopus subject areas

  • General Physics and Astronomy
  • Physical and Theoretical Chemistry


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