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Arylhydrazones of barbituric acid: synthesis, coordination ability and catalytic activity of their Co-II, Co-II/III and Cu-II complexes toward peroxidative oxidation of alkanes

2015Journal article Restricted access
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dc.contributor.authorPalmucci, Jessica
dc.contributor.authorMahmudov, Kamran
dc.contributor.authorGuedes da Silva, Maria deFátima C.
dc.contributor.authorMartins, Luisa
dc.contributor.authorMarchetti, Fabio
dc.contributor.authorPettinari, Claudio
dc.contributor.authorPombeiro, Armando
dc.date.accessioned2016-04-28T10:44:13Z
dc.date.available2016-04-28T10:44:13Z
dc.date.issued2015
dc.description.abstractNew ortho-substituted arylhydrazones of barbituric acid, 5-(2-(2-hydroxyphenyl)hydrazono) pyrimidine-2,4,6(1H,3H,5H)-trione (H4L1) and the sodium salt of 2-(2-(2,4,6-trioxotetra-hydropyrimidin-5(2H)-ylidene)hydrazinyl) benzenesulfonic acid (H4L2), [Na(H3L2)(mu-H2O)(H2O)(2)](2) (1), were used in the synthesis of Cu-II, Co-II and Co-II/III complexes, [Cu(H2L1)(H2O)(im)]center dot 3H(2)O (im = imidazole) (2), [Co(H2O)(6)] [Co(H2L1)(2)](2)center dot 8H(2)O (3), [Co(H2L2)(im)(3)] (4), [Cu(H2L2)(im)(2)]center dot H2O (5) and [Co(H2O)(6)][H3L2](2)center dot 8H(2)O (6). The complexes are water soluble and the mono-or di-deprotonated ligands display different coordination modes, depending on the synthetic conditions. The electrochemical behaviour of all the compounds was investigated by cyclic voltammetry and controlled potential electrolysis, revealing that the ligands are also redox active. All the compounds were evaluated as catalysts for the peroxidative (with H2O2) oxidation of cyclohexane at room temperature. The compounds 2 and 3 are the most active ones (yields up to 21% and TON up to 213 are achieved, in the presence of 3).pt_PT
dc.identifier.citationPALMUCCI, Jessica; [et al] - Arylhydrazones of barbituric acid: synthesis, coordination ability and catalytic activity of their C-oII, Co-II/III and Cu-II complexes toward peroxidative oxidation of alkanes. RSC Advances. ISSN 2046-2069. Vol. 5, N.º 102 (2015), pp. 84142-84152pt_PT
dc.identifier.doi10.1039/C5RA14078Apt_PT
dc.identifier.issn2046-2069
dc.identifier.urihttp://hdl.handle.net/10400.21/6112
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherRoyal Soc Chemistrypt_PT
dc.subjectChain copper(Ii) complexpt_PT
dc.subjectCyclohexane oxidationpt_PT
dc.subjectCrystal-structurespt_PT
dc.subjectIron complexespt_PT
dc.subjectLigandspt_PT
dc.subjectDerivativespt_PT
dc.subjectDinuclearpt_PT
dc.subjectFunctionalizationpt_PT
dc.subjectHexanuclearpt_PT
dc.subjectPrecursorspt_PT
dc.titleArylhydrazones of barbituric acid: synthesis, coordination ability and catalytic activity of their Co-II, Co-II/III and Cu-II complexes toward peroxidative oxidation of alkanespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage84152pt_PT
oaire.citation.issue102pt_PT
oaire.citation.startPage84142pt_PT
oaire.citation.titleRSC Advancespt_PT
oaire.citation.volume5pt_PT
person.familyNamePalmucci
person.familyNameMahmudov
person.familyNameMartins
person.familyNamePettinari
person.familyNamePombeiro
person.givenNameJessica
person.givenNameKamran
person.givenNameLuisa
person.givenNameClaudio
person.givenNameArmando
person.identifier637885
person.identifier.ciencia-idCD1F-CB64-9EA5
person.identifier.ciencia-idE218-E297-A4EA
person.identifier.ciencia-id8311-38FA-CEFB
person.identifier.orcid0000-0003-1990-3755
person.identifier.orcid0000-0003-0743-6520
person.identifier.orcid0000-0002-5403-9352
person.identifier.orcid0000-0002-2547-7206
person.identifier.orcid0000-0001-8323-888X
person.identifier.ridI-1409-2013
person.identifier.ridG-6210-2011
person.identifier.ridI-5945-2012
person.identifier.scopus-author-id24468352000
person.identifier.scopus-author-id8650947800
person.identifier.scopus-author-id7006581579
person.identifier.scopus-author-id7006067269
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication09a663d5-e446-4b03-b330-54e91147888a
relation.isAuthorOfPublication71d8ce81-a614-49c5-8606-e351da465649
relation.isAuthorOfPublication8ed70b09-b4d3-4a5d-9f75-12b13a332204
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relation.isAuthorOfPublication.latestForDiscovery2b28d30e-8866-4d0f-b0ad-cd83982ce204

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