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A dinuclear oxoperoxomolybdenum(VI) Complex, [Mo2O6(OH)2 (Pyridine Oxide Tetrazolate) 2], displaying the {MoO(O2)(OH)2MoO(O2)}0 core, and its catalytic performance in olefin epoxidation

2025-06-11Artigo científico Acesso restrito
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datacite.subject.sdg09:Indústria, Inovação e Infraestruturas
datacite.subject.sdg12:Produção e Consumo Sustentáveis
datacite.subject.sdg13:Ação Climática
dc.contributor.authorNunes, Martinique S.
dc.contributor.authorNeves, Patrícia
dc.contributor.authorGomes, Ana C.
dc.contributor.authorMendes, Ricardo F.
dc.contributor.authorPaz, Filipe A. Almeida
dc.contributor.authorD. Lopes, André
dc.contributor.authorSilva, José Paulo da
dc.contributor.authorPillinger, Martyn
dc.contributor.authorValente, Anabela A.
dc.contributor.authorGonçalves, Isabel S.
dc.date.accessioned2026-04-10T09:22:45Z
dc.date.available2026-04-10T09:22:45Z
dc.date.issued2025-06-11
dc.description.abstractThe dinuclear oxoperoxomolybdenum(VI) complex [Mo2O6(OH)2(pto)2] (1), containing a rare example of a hydroxo-bridged {MoO(O2) (μ-OH)2MoO(O2)}0 core, has been synthesized via the reaction of MoO3 with H2O2 and 5-(2-pyridyl-1-oxide)tetrazole (Hpto) and characterized by elemental analysis and ICP-OES, infrared and Raman spectroscopies, single crystal X-ray diffraction, nuclear magnetic resonance, and mass spectrometry. Compound 1 is an effective homogeneous catalyst for olefin epoxidation. The type of oxidant, namely tert-butyl hydroperoxide (TBHP) or H2O2, influences the catalytic performance. For cis-cyclooctene epoxidation, 1/TBHP led to 100% conversion after 4 h at 70 °C, and 1/H2O2 led to 80% conversion after 24 h at 70 °C. Catalyst recycling is feasible using an ionic liquid solvent with high affinity for the catalyst, and product separation via an extraction process. The catalytic potential of 1 was further explored for the chemical valorization of biomass-derived fatty acid methyl esters (FAMEs), namely C18-unsaturated methyl oleate and methyl linoleate derived from vegetable oils. The reaction of FAMEs/TBHP gave mainly epoxidized FAMEs (>97% selectivity at high conversions of 97–100%, at 70 °C). This catalyst is a rare example of a dinuclear organo-oxomolybdenum(VI) compound with the ability to epoxidize FAMEs.eng
dc.description.sponsorshipCEECIND/02128/2017; CEECIND/00553/2017
dc.identifier.doi10.1002/ejic.202500090
dc.identifier.eissn1099-0682
dc.identifier.issn1434-1948
dc.identifier.urihttp://hdl.handle.net/10400.1/28636
dc.language.isoeng
dc.peerreviewedyes
dc.publisherEuropean Chemical Societies Publishing
dc.relationCICECO-Aveiro Institute of Materials
dc.relationCICECO-Aveiro Institute of Materials
dc.relationCICECO – Aveiro Institute of Materials
dc.relationAlgarve Centre for Marine Sciences
dc.relationAlgarve Centre for Marine Sciences
dc.relationCentre for Marine and Environmental Research
dc.relation.ispartofEuropean Journal of Inorganic Chemistry
dc.rights.uriN/A
dc.subjectBio-olefins
dc.subjectDinuclear complexes
dc.subjectEpoxidation
dc.subjectMolybdenum
dc.subjectPeroxo complexes
dc.titleA dinuclear oxoperoxomolybdenum(VI) Complex, [Mo2O6(OH)2 (Pyridine Oxide Tetrazolate) 2], displaying the {MoO(O2)(OH)2MoO(O2)}0 core, and its catalytic performance in olefin epoxidationeng
dc.typejournal article
dspace.entity.typePublication
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oaire.citation.issue19
oaire.citation.startPagee202500090
oaire.citation.titleEuropean Journal of Inorganic Chemistry
oaire.citation.volume28
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oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
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