Organo-Uebergangsmetall-Chemie hochfluorierter Ligand-Systeme. X. Neue Organoniob(V)perfluoroborat-, arsenat-, und -antimonat-Komplexe

Article abstract of DOI:10.1016/0022-328X(89)80116-0

The quantitative oxidation of Cp2NbCl2 (Cp=η⁵-C5H5) with NO⁺, Ag⁺, I3⁺, AsF5 and F2 gives cationic niobium(V) derivatives of the type +>-> (X^-=BF4^-, AsF6^-, SbF6^-) in high yields.Reaction of with SbF5 and AgSbF6 gave and .The characterization was based on chemical analyses, NMR (1H, 19F), IR and mass spectral data; the structure of has been determined by X-ray diffraction.All oxidation reactions are discussed in terms of a simple thermodynamic model.