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Inne
Dioxidovanadium(V) complexes containing thiazol-hydrazone NNN-donor ligands and their catalytic activity in the oxidation of olefins.
Autorzy
Rok wydania
2017
Czasopismo
Numer woluminu
455
Strony
15-24
DOI
10.1016/j.ica.2016.10.005
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
The reaction between tridentate NNN donor ligands, (E)-2-(2-(pyridin-2-ylmethylene)hydrazinyl)benzo[d]thiazole (HL1) and (E)-2-(2-(phenyl(pyridin-2-yl)methylene)hydrazinyl)benzo[d]thiazole (HL2), with VO(acac)2 in ethanol gave [VO2(L1)] (1) and [VO2(L2)] (2) complexes. Complex [VO2(L2)]·0.2(H2O) (3) was produced from the reaction of HL2 and V2O5 in ethanol. Molecular structures of complexes were determined by single-crystal X-ray diffraction. All of the investigated compounds were further characterized by elemental analysis, FT-IR, UV–vis and NMR spectroscopy. The dioxidovanadium(V) species were used as catalysts for olefin oxidation in the presence of hydrogen peroxide (H2O2) as an oxidant. Under similar experimental conditions with equal vanadium loading, the presence of the [VO2(L1)] (1) resulted in higher conversion than in the case of using [VO2(L2)] (2) and [VO2(L2)]·0.2(H2O) (3) as catalytic agents.
Słowa kluczowe
Dioxidovanadium(V) complexes, thiazole-hydrazone ligands, crystal structure, epoxidation, N3-donor ligands
Adres publiczny
http://dx.doi.org/10.1016/j.ica.2016.10.005
Strona internetowa wydawcy
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