Vibrational predissociation of SF6 dimers and trimers

J. Geraedts, S. Stolte, J. Reuss

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64 Citations (Scopus)

Abstract

IR photo-dissociation spectra of SF6 clusters have been studied. A He-seeded molecular beam has been attenuated by crossing it with a line tunable cw CO2 laser of moderate power. - In the electron bombardment beam ionizer (Eel=100eV) small neutral clusters are found to fragment predominantly to the main monomer mass (SF5+). - Predissociation spectra have been calculated for clusters containing up to six SF6-molecules invoking the dipole-dipole resonance force to lift the degeneracy of the molecule - excited molecule interaction. On the basis of these spectra, dimer and trimer concentrations have been determined quantitatively, for different molecular beam conditions.

Original languageEnglish
Pages (from-to)167-175
Number of pages9
JournalZeitschrift für Physik A Atoms and Nuclei
Volume304
Issue number2
DOIs
Publication statusPublished - 1 Jun 1982

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