Formation of a Cluster H2V10O284– under the Action of Brønsted Acids and Its Catalytic Activity in Oxidation of Alkylbenzenes

Resumo

New method was developed for the preparation of vanadium cluster of the composition {Me₂NH₂}₄* H₂V₁₀O₂₈ from vanadyl(IV) acetylacetonate in the presence of 2-hydroxy-2-trifluoromethylchroman-4-one or its synthetic precursor, 2′-hydroxyacetophenone. The structure of the cluster was proved by X-ray diffraction (XRD) analysis. The cluster of decavanadate catalyzes oxidation of toluene and o-xylene creating promising situation for developing new catalytic materials.