We report the structural characterization of vanadyl acetylacetonate in imidazolium room temperature ionic liquids--bbimNTf(2), bmimNTf(2), C(3)OmimNTf(2), bm(2)imNTf(2), bmimPF(6), bmimOTf, bmimBF(4), bmimMeCO(2), bmimMeSO(4), bmimMe(2)PO(4) and bmimN(CN)(2)--and organic solvents. The complex was characterized by visible electronic (Vis) and EPR spectroscopies. VO(acac)(2) shows solvatochromis...

A new sol±gel route was applied to prepare alumina ®lms by using AlCl3 ́6H2O as starting material and acetylacetone (AcAc) as additive. Our research results show that AcAc and aluminum form a complex compound in the sol, which makes the sol very stable. Meanwhile, the complex structure prevents the decomposition going on quickly during the sintering process and the obtained ®lms are free of crac...

A new derivative of zirconium (IV), [(acac)2Zr{ONC(Me)th-2}2] have been produced by treating bis(acetylacetonato)diisopropoxy zirconium(IV) with internally functionalised oxime HONC(Me)th-2 (where th = thiophene) in 1:2 stoichiometry, while refluxing in anhydrous toluene. After drying and purification, the product appeared as offwhite crystalline solid. Physico-chemical analysis of this derivat...

The asymmetric unit of the title compound, [U(C(5)H(7)O(2))(2)O(2)(H(2)O)]·C(4)H(4)N(2), contains one [UO(2)(acac)(2)(H(2)O)] (where acac is acetyl-acetonate) and two half-mol-ecules of pyrazine. It exhibits a UO(7) penta-gonal-bipyramidal coordination geometry about the U(VI) atom, involving two bidentate acetyl-acetonate ions and one water mol-ecule. The N atoms of the pyrazine mol-ecules are...

The title compound, C(11)H(18)N(2)S(4), was unexpectedly obtained during studies on the reactivity of the complex tris-(acac-κ(2)O,O')gallium(III) (acac is acetyl-acetonate) with C(4)H(8)NCS(2)H in dichloro-methane. The title compound shows disordered two pyrrolidine rings with major and minor occupancies of 0.546 (4) and 0.454 (4). Two (pyrrolidin-1-yl)carbothio-ylsulfanyl units are linked tog...

A series of oxometallic species and metal acetylacetonates (acac) was examined as catalysts for oxidative carbonylation of styrene with benzaldehyde using t-butylhydroperoxide as the co-oxidant in warm acetonitrile. Among them, VO((acac)2 and vanadyl(IV) chloride were found to be the only catalyst class to achieve cross-coupling processes by judiciously tuning the ligand electronic attributes, ...

A two-step procedure was implemented to obtain tungsten oxide nanowires (WO3) doped with cobalt or silver oxide nanoparticles from metal-organic precursors, W(CO)6, Co(acac)2 and Ag(acac)2. In the first step, nanowires were grown at 400 °C using an aerosol assisted chemical vapor deposition system (AA-CVD) and subsequently annealed at 500 °C for 2 h. In the second step, metal loading (at differ...

The biaryl coupling of substituted aromatic alcohols and the oxidation of p-hydroquinones with molecular oxygen catalyzed by VO(acac)2 were achieved in good to excellent yields.