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Copper(II) complexes with an arylhydrazone of methyl 2-cyanoacetate as effective catalysts in the microwave-assisted oxidation of cyclohexane

2018-02-24Journal article Restricted access
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dc.contributor.authorJlassi, Raja
dc.contributor.authorDa Costa Ribeiro, Ana Paula
dc.contributor.authorAlegria, Elisabete
dc.contributor.authorNaili, Houcine
dc.contributor.authorTiago, Gonçalo
dc.contributor.authorRueffer, Tobias
dc.contributor.authorLang, Heinrich
dc.contributor.authorZubkov, Fedor
dc.contributor.authorPombeiro, Armando
dc.contributor.authorRekik, Walid
dc.date.accessioned2018-02-01T10:58:20Z
dc.date.available2018-02-01T10:58:20Z
dc.date.issued2018-02-24
dc.description.abstractReaction of sodium (E/Z)-2-(2-(1-cyano-2-methoxy-2-oxoethylidene) hydrazinyl) benzene-sulfonate (NaHL) with copper(II) nitrate hydrate in the presence of imidazole (im) in methanol affords [CuL(im)(H2O)] (1). Complex 1 is characterized by IR spectroscopy and ESI-MS spectrometry, elemental and single crystal X-ray crystal structural analyses. The coordination environment of the central copper(II) is nearly intermediate between ideal square-based pyramidal and trigonal bipyramidal geometry, three sites being occupied by the L2- ligand, which chelates in the O, N, O fashion, while two other sites are filled with the water and imidazole molecules. Extensive intermolecular hydrogen bonds between the L2-, water and imidazole ligands lead to a 3D supramolecular network. 1 and known Cu(II) complexes [Cu(H2O)(2)L]center dot H2O (2), [Cu(H2O)(py)L]center dot H2O (3) and [Cu-3(mu(3)-OH)(NO3)(CH3OH)(mu(2)-X)(3)(mu(2)-HL)] (4) act as effective catalysts in the oxidation of cyclohexane to cyclohexanol and cyclohexanone, using low power microwave (MW) irradiation, under mild conditions. Without a promoter, the activity of the catalyst reached a turnover number of 1.44 x 10(3) and a turnover frequency of 1.98 x 10(3) h(-1), after 2 h, at 50 degrees C. (C) 2017 Elsevier B.V. All rights reserved.pt_PT
dc.description.versioninfo:eu-repo/semantics/acceptedVersionpt_PT
dc.identifier.citationJLASSI, Raja; [et al] – Copper(II) complexes with an arylhydrazone of methyl 2-cyanoacetate as effective catalysts in the microwave-assisted oxidation of cyclohexane. Inorganica Chimica Acta. ISSN 0020-1693. Vol. 471 (2018), pp. 658-663pt_PT
dc.identifier.doi10.1016/j.ica.2017.12.001pt_PT
dc.identifier.issn0020-1693
dc.identifier.urihttp://hdl.handle.net/10400.21/8010
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationFCT - PTDC/QEQ-QIN/3967/2014pt_PT
dc.relationCATSUS doctoral and post-doctoral programs of FCT - SFRH/ PD/BD/106015/2014pt_PT
dc.relation''RUDN University Program 5-100'', Russian Federationpt_PT
dc.relation.publisherversionhttps://ac.els-cdn.com/S0020169317315748/1-s2.0-S0020169317315748-main.pdf?_tid=f612b700-073a-11e8-967f-00000aacb361&acdnat=1517481225_6b577706cce1cb5f5f0fc8359c6e415bpt_PT
dc.subjectCOPPER(II) complexespt_PT
dc.subjectArylhydrazones of active methylenept_PT
dc.subjectCompounds (AHAMC)pt_PT
dc.subjectCatalytic activitypt_PT
dc.subjectMicrowave irradiationpt_PT
dc.subjectCyclohexane oxidationpt_PT
dc.titleCopper(II) complexes with an arylhydrazone of methyl 2-cyanoacetate as effective catalysts in the microwave-assisted oxidation of cyclohexanept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FQUI%2F00100%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F90883%2F2012/PT
oaire.citation.endPage663pt_PT
oaire.citation.startPage658pt_PT
oaire.citation.titleInorganica Chimica Actapt_PT
oaire.citation.volume471pt_PT
oaire.fundingStream5876
oaire.fundingStreamSFRH
person.familyNameda Costa Ribeiro
person.familyNameAlegria
person.familyNameTiago
person.familyNameZubkov
person.familyNamePombeiro
person.familyNameRekik
person.givenNameAna Paula
person.givenNameElisabete
person.givenNameGonçalo
person.givenNameFedor
person.givenNameArmando
person.givenNameWalid
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person.identifier.orcid0000-0001-8323-888X
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person.identifier.ridF-8341-2014
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person.identifier.scopus-author-id22235818800
person.identifier.scopus-author-id8315848300
person.identifier.scopus-author-id56276495000
person.identifier.scopus-author-id6603592191
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project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
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