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Related Experiment Videos

Alkynylxenon(II) fluorides.

Harald Schmidt1, Harald Scherer, Wieland Tyrra

  • 1Universität zu Köln, Institut für Anorganische Chemie, Greinstrasse 6, 50939 Köln, Germany.

Inorganic Chemistry
|March 17, 2004
PubMed
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Researchers synthesized novel alkynylxenon(II) fluorides using trimethyl(alkynyl)silanes and xenon difluoride. The study confirmed the linear C≡C-Xe-F structure in phenyl(alkynyl)xenon(II) fluoride using advanced NMR techniques.

Area of Science:

  • Organometallic Chemistry
  • Inorganic Fluorine Chemistry

Background:

  • Xenon compounds, particularly those with carbon-xenon bonds, are of significant interest in synthetic chemistry.
  • Previous research has explored various xenon(II) derivatives, but alkynylxenon(II) fluorides remained largely uncharacterized.

Purpose of the Study:

  • To synthesize and characterize novel alkynylxenon(II) fluorides.
  • To investigate the structural properties of these new compounds, specifically the C-Xe-F linkage.
  • To establish a reliable synthetic route for accessing these unique xenon-containing molecules.

Main Methods:

  • Reaction of trimethyl(alkynyl)silanes (Me3SiC≡CR) with xenon difluoride (XeF2).
  • Utilized tetramethylammonium fluoride ([NMe4F) as a catalyst in common organic solvents.

Related Experiment Videos

  • Employed low-temperature conditions for the synthesis.
  • Characterized the product PhC≡CXeF using 19F-13C NMR correlation spectroscopy, specifically the Heteronuclear Multiple Bond Correlation (HMBC) pulse sequence.

    • Main Results:

    • Successfully synthesized alkynylxenon(II) fluorides (RC≡CXeF).
    • Confirmed the formation of the linear C≡C-Xe-F unit in phenyl(alkynyl)xenon(II) fluoride (PhC≡CXeF).
    • NMR data provided definitive proof of the proposed structure and bonding.

    Conclusions:

    • Alkynylxenon(II) fluorides represent a new class of organoxenon compounds.
    • The synthetic methodology is effective for accessing these compounds.
    • The linear C≡C-Xe-F moiety is stable and structurally characterized, opening avenues for further organoxenon chemistry research.