Photoexcitations of the Si-4 anion. Theoretical study

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14 Scopus citations


Some stable and metastable (autodetaching) excited states of the Si-4 anions are characterized with the use of the first-order correlation orbital method and the coupled-cluster method. There are three doublet states of the anion, X 2B2g, 2B1g and 2B1u, which lie below the electron ejection threshold. All other states have total energy higher than the energy of the neutral cluster.

Original languageEnglish (US)
Pages (from-to)244-250
Number of pages7
JournalChemical Physics Letters
Issue number3-4
StatePublished - Oct 18 1991

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry


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