Naslov
Dioxomolybdenum(VI) complexes with thiosemicarbazone ligands as (pre)catalysts for olefin epoxidation

Autori
Renka, Sanja

Vrsta, podvrsta i kategorija rada
Ocjenski radovi, diplomski rad, diplomski

Fakultet
Prirodoslovno-matematički fakultet

Mjesto
Zagreb

Datum
23.01

Godina
2019

Stranica
73

Mentor
Vrdoljak, Višnja ; Agustin, Dominique

Neposredni voditelj
Pisk, Jana

Ključne riječi
molybdenum(VI) complexes, polyoxomolybdates, solvent-free epoxidation

Sažetak
Three polynuclear dioxomolybdenum(VI) complexes [MoO2(5MeO-SalTSC-4-Ph)]n, [MoO2(5MeO-SalTSC-4- Me)]n and [{;MoO2(5-MeO-SalTSC)};·½CH3CN] n, two mononuclear [MoO2(5MeO-SalTSC-4-Me)(MeOH)] and [MoO2(5MeO-SalTSC)(MeOH)]·MeOH and hybrid organic-inorganic POM complex [MoO2(H5MeO- SalTSC-4Me)(CH3CN)]2Mo6O19 have been synthesized by the reaction of [MoO2(acac)2] and corresponding thiosemicarbazone ligand in 1:1 and 7:1 molar ratio, respectively. Mononuclear complexes were obtained from a methanolic solution, whereas polynuclear and POM hybrid complex from acetonitrile. Complexes were characterized by the IR spectroscopy, elemental and thermogravimetric analysis. Additionally, molecular and crystal structures of mononuclear complexes were determined by the single crystal X-ray diffraction. Catalytic activity of all complexes was tested in the solvent-free epoxidation of cis-cyclooctene, cyclohexene and (R)-limonene with TBHP as an oxidant and low catalyst loading (0.05 %).

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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