Synthesis and Structure of New Pt(IV) Perfluorocarboxylate Complexes and Their Reactivity with Respect to Alkanes and Cycloalkanes

Resumo

New Pt(IV) perfluorocarboxylate complexes of the composition [Pt(R_FCOO)₄]_n and M₂[Pt(R_FCOO)₆] (R_F = CF₃, C₂F₅; M = Li, Na, K, Rb, Cs, NMe₄) have been synthesized and studied. These complexes are strong oxidizing agents capable of oxidizing alkanes in trifluoroacetic acid under mild conditions to form trifluoroacetic acid esters and acting as catalysts for the oxidative trifluoroacetoxylation of alkanes, cycloalkanes, and framework compounds. They can also be used as starting compounds for the synthesis of other perfluorocarboxylate complexes of platinum in various oxidation states. The structure of (NMe₄)₂[Pt(CF₃COO)₆] · 6CF₃COOH has been determined by X-ray diffraction.