Electron Ionization Mass Spectrum of Tellurium Hexafluoride

Richard A. Clark, Bruce K. McNamara, Charles J. Barinaga, James M. Peterson, Niranjan Govind, Amity Andersen, David G. Abrecht, Jon M. Schwantes, Nathan E. Ballou

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


The electron ionization mass spectrum of tellurium hexafluoride (TeF6) is reported for the first time. The starting material was produced by direct fluorination of Te metal or TeO2 with nitrogen trifluoride. Formation of TeF6 was confirmed through cryogenic capture of the tellurium fluorination product and analysis through Raman spectroscopy. The eight natural abundance isotopes were observed for each of the set of fragment ions: TeF5+, TeF4+ TeF3+, TeF2+, TeF1+, and Te+, Te2+. A trend in increasing abundance was observed for the odd fluoride bearing ions, TeF1+ < TeF3+ < TeF5+, and a decreasing abundance was observed for the even fragment series, Te(F0)+ > TeF2+ > TeF4+ > TeF6+, with the molecular ion TeF6+ not observed at all. Density functional theory based electronic structure calculations were used to calculate optimized ground state geometries of these gas phase species, and their relative stabilities explain the trends in the data and the lack of observed signal for TeF6+. (Chemical Equation Presented).

Original languageEnglish (US)
Pages (from-to)4821-4826
Number of pages6
JournalInorganic chemistry
Issue number10
StatePublished - May 18 2015

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry


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