Pregled bibliografske jedinice broj: 723831
Dioxomolybdenum(VI) and dioxotungsten(VI) complexes chelated with the ONO tridentate hydrazone ligand: synthesis, structure and catalytic epoxidation activity
Dioxomolybdenum(VI) and dioxotungsten(VI) complexes chelated with the ONO tridentate hydrazone ligand: synthesis, structure and catalytic epoxidation activity // New journal of chemistry, 38 (2014), 12; 6176-6185 doi:10.1039/c4nj01394H (međunarodna recenzija, članak, znanstveni)
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Naslov
Dioxomolybdenum(VI) and dioxotungsten(VI)
complexes chelated with the ONO tridentate
hydrazone ligand: synthesis, structure and
catalytic epoxidation activity
Autori
Vrdoljak, Višnja ; Pisk, Jana ; Agustin, Dominique ; Novak, Predrag ; Parlov Vuković, Jelena ; Matković-Čalogović, Dubravka
Izvornik
New journal of chemistry (1144-0546) 38
(2014), 12;
6176-6185
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
molybdenum ; tungsten ; aroylhydrazone ; epoxidation ; solvent-free
Sažetak
Synthesis of the dioxomolybdenum(VI) complexes [MoO2(L3OMe)(EtOH)] (1), [MoO2(L4OMe)(EtOH)] (2)and [MoO2(LH)(EtOH)] (3) and dioxotungsten(VI) complexes [WO2(L3OMe)(EtOH)] (4), [WO2(L4OMe)EtOH)] (5) and [WO2(LH)]n (6a) was carried out using [MO2(C5H7O2)2] (M = Mo or W) and the corresponding aroylhydrazone ligand H2LR(3- methoxysalicylaldehyde 4-hydroxybenzhydrazone (H2L3OMe), 4-ethoxysalicylaldehyde 4- hydroxybenzhydrazone (H2L4OMe), or salicylaldehyde 4-hydroxybenzhydrazone (H2LH) in ethanol.Compounds obtained upon heating of the mononuclear complexes in acetonitrile or dichloromethane, [MO2(LR)n(1a– 6a) or [MoO2(L3OMe)]2(1b), respectively, were also investigated. Crystal and molecular structures of the mononuclear 1, 2and 3, polynuclear 1a×MeCN and dinuclear 1b complexes were determined by the single crystal X-ray diffraction method. Powder X- ray diffraction showed isostructurality of 1 and 4, and 2 and 5. The complexes were further characterized by elemental analysis, IR spectroscopy, TG and DSC analyses, and one- and two-dimensional NMR spectroscopy. The catalytic performances of 1–5 and 6a were investigated for epoxidation of cyclooctene using aqueous tert- butylhydroperoxide (TBHP)as the oxidant.
Izvorni jezik
Engleski
Znanstvena područja
Kemija
POVEZANOST RADA
Projekti:
MZOS-119-1191342-1082 - Novi kompleksni spojevi i materijali-kemijski i biološki katalizatori (Cindrić, Marina, MZOS ) ( CroRIS)
MZOS-119-1191342-1083 - Interakcije i dizajn bioaktivnih molekula (Novak, Predrag, MZOS ) ( CroRIS)
MZOS-119-1193079-1084 - Strukturno istraživanje bioloških makromolekula metodom rentgenske difrakcije (Matković-Čalogović, Dubravka, MZOS ) ( CroRIS)
Ustanove:
INA-Industrija nafte d.d.,
Prirodoslovno-matematički fakultet, Zagreb
Profili:
Višnja Vrdoljak
(autor)
Dubravka Matković-Čalogović
(autor)
Jana Pisk
(autor)
Jelena Parlov Vuković
(autor)
Predrag Novak
(autor)
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus