Repozytorium

Dioxidovanadium(V) complexes containing thiazol-hydrazone NNN-donor ligands and their catalytic activity in the oxidation of olefins.

Autorzy

Massomeh Ghorbanloo

Solmaz Jafari

Rahman Bikas

Marta S. Krawczyk

Tadeusz Lis

Rok wydania

2017

Czasopismo

Inorganica Chimica Acta

Numer woluminu

455

Strony

15-24

DOI

10.1016/j.ica.2016.10.005

Kolekcja

Naukowa

Język

Angielski

Typ publikacji

Artykuł

Streszczenie

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

http://www.elsevier.com

Podobne publikacje