Polyoxovanadates were recently found to be the most active among a series of polyoxometalates against bacteria. In this study, a reverse correlation was found between the Ca2+-ATPase IC50 and the E. Coli GI50 values.
Systematic variation of the titanium source and the reaction temperature applied during hydrothermal synthesis led to crystallization of four new titanoniobates: {[Ni(cyclam)]4[Ti2Nb8O28]}n·∼28nH2O (I), K[Ni(cyclam)]3[TiNb9O28]·xH2O; x = 18 (II), x = 14 (III) and x ∼ 10(IV).
Na8{Ni[Ni(en)]2Nb10O32}·28H2O, representing the first example of trinuclear nickel-containing polyoxoniobate, has been synthesized. It was found to catalyze the epoxidation of 3-methyl-2-buten-1-ol with high conversion and selectivity.
A sustainable strategy for γ-butyrolactone production from furfural was developed, which involves photocatalytic oxidation and subsequent hydrodeoxygenation over Pt/Nb5Zr5-550 bifunctional catalysts.
Polyoxometalates (POMs) are transition metal complexes that exhibit a broad diversity of structures and properties rendering them promising for biological purposes.