Synthesis and characterization of rhenium(I) complexes with the polypyridinic quinone functionalized electron acceptor ligand [3,2-a:2?,3?-c]-benzo[3,4]-phenazine-11,16-quinone, Nqphen

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datacite.alternateIdentifier.citationPolyhedron, 30 (5), 701-697, 2011
datacite.alternateIdentifier.doi10.1016/j.poly.2010.12.001
datacite.alternateIdentifier.issn0277-5387
datacite.creatorDiaz, Ramiro
datacite.creatorFrancois, Angelica
datacite.creatorLoeb, Barbara
datacite.date2011
datacite.rightsRegistro bibliográfico
datacite.subjectAcceptor ligand
datacite.subjectQuinone
datacite.subjectR(I) complexes
datacite.titleSynthesis and characterization of rhenium(I) complexes with the polypyridinic quinone functionalized electron acceptor ligand [3,2-a:2?,3?-c]-benzo[3,4]-phenazine-11,16-quinone, Nqphen
dc.date.accessioned2025-10-06T14:22:04Z
dc.date.available2025-10-06T14:22:04Z
dc.description.abstractIn this work, the synthesis and characterization of fac-[Re(CO)(3)(Nqphen)(L)]PF(6) complexes is reported. Nqphen is the quinone substituted acceptor ligand [3,2-a:2',3'-c]-benzo[3,4]-phenazine-11,16-quinone, and L represents the donor monodentate pyridine substituted ligands 4-tert-butylpyridine (t-Bupy), 4-methoxypyridine (MeO-py) or 10-(4-picolyl)phenothiazine (py-PTZ). The complexes were synthesized by refluxing in methanol the metal precursor fac-Re(CO)(3)(Nqphen)TfO (TfO = trifluoromethanesulphonate anion) with the corresponding L ligand. The UV-Vis spectra of the complexes are dominated by intense intraligand (IL) bands, and less intense metal ligand charge transfer (MLCT) bands with maxima in the 380-400 nm region. The IR shows the typical pattern for tricarbonyl Re complexes with facial (NO geometry. An additional v(CO) stretching band, attributed to the quinone fragment of Nqphen, is observed. Electrochemical data indicate that the acceptor capacity of Nqphen is increased in the complexes with regard to the free ligand. This effect is sensitive to the nature of the L ligand, following the order: MeO-py < t-Bupy < py-PTZ, indicating therefore that the donor capacity of L affects the rest of the molecule. The results obtained for the fac-[Re (CO)(3)(Nqphen)(pyPTZ)]PF(6) complex here reported were compared with those observed for the homologous complex fac-[Re(CO)(3)(Aqphen)(L)](0/+), with Aqphen = 12,17-dihydronaphtho[2,3-h]dipyrido[3,2-a:2',3'-c]-phenazine-12,17-dione, and L= Cl(-), TfO(-), py-PTZ. (C) 2010 Elsevier Ltd. All rights reserved.
dc.description.ia_keywordnqphen, complexes, ligand, quinone, acceptor, phenazine, synthesis
dc.identifier.urihttps://repositoriodigital.uct.cl/handle/10925/6927
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relationinstname: ANID
dc.relationreponame: Repositorio Digital RI2.0
dc.rights.driverinfo:eu-repo/semantics/openAccess
dc.sourcePolyhedron
dc.subject.ia_odsODS 8: Trabajo decente y crecimiento económico
dc.subject.ia_oecd1nCiencias Naturales
dc.subject.ia_oecd2nCiencias Físicas
dc.subject.ia_oecd3nQuímica
dc.type.driverinfo:eu-repo/semantics/article
dc.type.driverhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.type.openaireinfo:eu-repo/semantics/publishedVersion
dspace.entity.typePublication
oaire.citationEdition2011
oaire.citationEndPage701
oaire.citationIssue5
oaire.citationStartPage697
oaire.citationTitlePolyhedron
oaire.citationVolume30
oaire.fundingReferenceANID FONDECYT 1020517, 1070799 (Regular)
oaire.fundingReferenceUCT Dirección General de Investigación DGIUCT 2006-3-11
oaire.licenseConditionCopyright © Elsevier Ltd, 2010
oaire.resourceTypeArtículo
oaire.resourceType.enArticle
uct.catalogadorjvu
uct.comunidadRecursos Naturalesen_US
uct.departamentoDepartamento de Ciencias Ambientales
uct.departamentoDepartamento de Ciencias Biológicas y Químicas
uct.facultadFacultad de Recursos Naturales
uct.indizacionScience Citation Index Expanded - SCIE
uct.indizacionScopus
uct.indizacionChemical Abstracts Service (CAS)
uct.indizacionCurrent Contents/Physical, Chemical & Earth Sciences
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