Alkylrhenium(VI) oxides -synthesis and characterization

Fritz E. Kühn, J. Mink, Wolfgang A. Herrmann

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Most alkylrhenium(VII) oxides, e.g. ((cydo)-C3H5)ReO3 (2) are rather sensitive to temperature and moisture with the prominent exception of methyltrioxorhenium (1). The corresponding alkylrhenium(VI) oxides of formula [RR'(O)-Re(μ-O)]2 [R = R′ = (cyclo)-C3H5 (3), iPr (4); R = CH3, R′ = C2H5 (5), R = CH3, R′ = iPr (6)] are much more stable in this regard. They can be handled in air at room temperature. They were synthesized from Re2O7 and dialkylzinc precursors, fully characterized and are available in much higher yields than their ReVII congeners. Mixed tetraalkyltetraoxodirhenium(VI) complexes (R ≠ R′) synthesized from 1 and dialkylzinc compounds form as a mixture of cis/trans isomers. They are oily liquids at room temperature. The Re=O and Re-Re stretching force constants as a measure of the bond strengths, were determined from IR and Raman data.

Original languageEnglish
Pages (from-to)295-298
Number of pages4
JournalChemische Berichte
Volume130
Issue number2
Publication statusPublished - 1997

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Oxides
Isomers
Temperature
Stretching
Moisture
Liquids
Air
methyltrioxorhenium VII

Keywords

  • Alkyl ligands
  • Dirhenium compounds
  • Metal-metal interactions
  • Oxides
  • Rhenium

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Kühn, F. E., Mink, J., & Herrmann, W. A. (1997). Alkylrhenium(VI) oxides -synthesis and characterization. Chemische Berichte, 130(2), 295-298.

Alkylrhenium(VI) oxides -synthesis and characterization. / Kühn, Fritz E.; Mink, J.; Herrmann, Wolfgang A.

In: Chemische Berichte, Vol. 130, No. 2, 1997, p. 295-298.

Research output: Contribution to journalArticle

Kühn, FE, Mink, J & Herrmann, WA 1997, 'Alkylrhenium(VI) oxides -synthesis and characterization', Chemische Berichte, vol. 130, no. 2, pp. 295-298.
Kühn, Fritz E. ; Mink, J. ; Herrmann, Wolfgang A. / Alkylrhenium(VI) oxides -synthesis and characterization. In: Chemische Berichte. 1997 ; Vol. 130, No. 2. pp. 295-298.
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