Theoretical study of the vacuum-ultraviolet spectra of SnH4 and Sn(CH3)4

Koji Yasuda, Naoki Kishimoto, Hiroshi Nakatsuji

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5 Citations (Scopus)

Abstract

The excitation spectra of SnH4 and Sn(CH3)4 were studied theoretically by the SAC-CI (symmetry adapted cluster-configuration interaction) method. The calculated spectra agree well with the observed vacuum-ultraviolet (VUV) spectra. The results of the lowest states agree with the earlier works by Fernandez et al. In higher energy region, the earlier works have overlooked many states which constitute broad observed bands. The new assignments of the spectra up to the first ionization potential are given, and the natures of the excitations are discussed. The excitations in this energy region are primarily Rydberg in nature, though some states show a strong mixing with the valence antibonding states. The difference in the VUV spectra between SnH4 and Sn(CH3)4 is attributed to the difference in the nodes of the t2σ* antibonding orbitale.

Original languageEnglish
Pages (from-to)12501-12506
Number of pages6
JournalJournal of physical chemistry
Volume99
Issue number33
DOIs
Publication statusPublished - 1995 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)
  • Physical and Theoretical Chemistry

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