TRANSITION METAL FLUORIDE CHEMISTRY

Our research has also demonstrated the synthetic utility of noble-gas species for the syntheses of novel high-oxidation state transition element species. We have been able to apply noble-gas compounds to synthetic problems including high-oxidation-state transition metal chemistry., e.g., , AuF₅, TcOF₅, TcO₂F₃. This is exemplified by our contributions to Tc(VII), Re(VII) and Os(VIII) chemistry such as the syntheses and structural characterization of the TcO₂F₃, TcO₂F₄^-, TcOF₅, Tc₂O₂F₉⁺, OsO₂F₃⁺, OsO₃F⁺, Os₂O₄F₇⁺, cis-O₂Re(OTeF₅)₄^- and Re₃O₆F₁₀^-. We have devoted particular attention to the little studied chemistry of Os(VIII), establishing a significant portion of what is known about Os(VIII) compounds, including the aforementioned oxide fluoride cations, fac-OsO₃F₃^- (C_3v), OsO₂F₅^- (C_2v, monocapped trigonal prism), cis-OsO₄F^- (C_2v), OsO₄F^- (C_s, distorted trigonal bipyramid), and rare examples of HF coordinated to metal centers in [OsO₃F][HF][SbF₆] and {[OsO₃F][HF]₂[AsF₆]}₂.