Microwave spectra and quadrupole coupling measurements for methyl rhenium trioxide

S. M. Sickafoose, P. Wikrent, B. J. Drouin, S. G. Kukolich

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8 Scopus citations


Microwave rotational transitions for J′ ← J = 1 ← 0 and 2 ← 1 were measured in the 6-14 GHz range for methyl rhenium trioxide using a Flygare-Balle type, pulsed-beam spectrometer. The rotational constants for the most abundant isotopomers are B(187Re) = 3466.964(2) MHz and B(185Re) = 3467.049(3) MHz. The quadrupole coupling strengths are eQq(187Re) = 716.55(2) MHz and eQq(185Re) = 757.19(3) MHz. Transitions were also observed for 13C isotopomers and 18O isotopomers. The value for the Re-C bond length obtained from a Kraitchman analysis is R(Re-C) = 2.080 Å. The rhenium quadrupole coupling strengths are about 20% smaller than those obtained for HRe(CO)5.

Original languageEnglish (US)
Pages (from-to)191-196
Number of pages6
JournalChemical Physics Letters
Issue number1-2
StatePublished - Dec 6 1996

ASJC Scopus subject areas

  • General Physics and Astronomy
  • Physical and Theoretical Chemistry


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