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Synthesis, characterization and solid-state photoluminescence studies of six alkoxy phenylene ethynylene dinuclear palladium(II) rods

2015Journal article Open access
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dc.contributor.authorFigueira, João
dc.contributor.authorCzardybon, Wojciech
dc.contributor.authorMesquita, José Carlos
dc.contributor.authorRodrigues, João
dc.contributor.authorLahoz, Fernando
dc.contributor.authorRusso, Luca
dc.contributor.authorValkonen, Arto
dc.contributor.authorRissanen, Kari
dc.date.accessioned2018-08-20T14:32:59Z
dc.date.available2018-08-20T14:32:59Z
dc.date.issued2015
dc.description.abstractA rare family of six discrete binuclear [PdCl(PEt3)2] phenylene ethynylene rods with alkoxy side chains (methoxy, ethoxy and heptoxy) have been developed, and their solid-state photoluminescence results have been presented and discussed. The shorter bridging ligands are of the general formula H–CuC– C6H2(R)2–CuC–H, where R = H, OCH3, OC 2H5, and OC7H15, whereas the longer ones are based on H– CuC–C6H4–CuC–C6H2(R)2–CuC–C6H4–CuC–H, where R = OCH3, OC 2H5. These ligands display increasing length in both the main dimension (backbone length) as well as the number of carbons in the side chains (R, alkoxide side chain) that stem from the central phenylene moiety. The X-ray crystal structures of two of the prepared complexes are reported: one corresponds to a shorter rod, 1,4-bis[trans(PEt3)2ClPd-CuC]-2,5-diethoxybenzene (6c), while the second one is associated with a longer rod, the binuclear complex 1,4-bis[trans-(PEt3)2ClPd-4-(–CuC–C6H4–CuC)]-2,5-diethoxybenzene (7c). All new compounds were characterized by NMR spectroscopy (1H, 13C{1H} and 31P{1H}) as well as ESI-MS(TOF), EA, FTIR, UV-Vis, cyclic voltammetry and solid-state photoluminescence. Our work shows the influence of the alkoxy side chains on the electronic structure of the family of binuclear Pd rods by lowering its oxidation potential. In addition to this, the increase of the length of the bridge results in a higher oxidation potential. Solid state photoluminescence results indicate that Pd complexes are characterized by a marked decrease in both the emission intensity and the fluorescence lifetime values as compared to their ligands. This behaviour could be due to some degree of ligand-to-metal charge transfer.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationFigueira, J., Czardybon, W., Mesquita, J. C., Rodrigues, J., Lahoz, F., Russo, L., ... & Rissanen, K. (2015). Synthesis, characterization and solid-state photoluminescence studies of six alkoxy phenylene ethynylene dinuclear palladium (II) rods. Dalton Transactions, 44(9), 4003-4015.pt_PT
dc.identifier.doi10.1039/c4dt00493kpt_PT
dc.identifier.issn1477-9226
dc.identifier.urihttp://hdl.handle.net/10400.13/2077
dc.language.isoengpt_PT
dc.publisherRoyal Society of Chemistrypt_PT
dc.relationNEW METALLOMOLECULAR WIRES BASED IN OLIGOTHIOPHENE BRIDGING SYSTEMS - A SYSTEMATIC STUDY.
dc.relationDEVELOPMENT OF A NOVEL FAMILY OF PT II & PD II METALLOMOLECULAR WIRES USING 1,4 - DIETHNYLBENZENE DERIVATIVES AS SPACERS LIGANDS
dc.relationStrategic Project - UI 674 - 2011-2012
dc.subjectAlkoxy phenylene ethynylene dinuclear palladiumpt_PT
dc.subjectSolid-state photoluminescencept_PT
dc.subject.pt_PT
dc.subjectFaculdade de Ciências Exatas e da Engenhariapt_PT
dc.subjectCentro de Química da Madeira
dc.titleSynthesis, characterization and solid-state photoluminescence studies of six alkoxy phenylene ethynylene dinuclear palladium(II) rodspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleNEW METALLOMOLECULAR WIRES BASED IN OLIGOTHIOPHENE BRIDGING SYSTEMS - A SYSTEMATIC STUDY.
oaire.awardTitleDEVELOPMENT OF A NOVEL FAMILY OF PT II & PD II METALLOMOLECULAR WIRES USING 1,4 - DIETHNYLBENZENE DERIVATIVES AS SPACERS LIGANDS
oaire.awardTitleStrategic Project - UI 674 - 2011-2012
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FCTM%2F098451%2F2008/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/PIDDAC/SFRH%2FBD%2F29325%2F2006/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/POCI-2010/SFRH%2FBPD%2F20695%2F2004/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/PEst-OE%2FQUI%2FUI0674%2F2011/PT
oaire.citation.conferencePlaceReino Unidopt_PT
oaire.citation.endPage4015pt_PT
oaire.citation.startPage4003pt_PT
oaire.citation.titleDalton Transactionspt_PT
oaire.citation.volume44(9)pt_PT
oaire.fundingStream3599-PPCDT
oaire.fundingStreamPIDDAC
oaire.fundingStreamPOCI-2010
oaire.fundingStream6817 - DCRRNI ID
person.familyNameFigueira
person.familyNameMesquita
person.familyNameRodrigues
person.familyNameLahoz
person.familyNameValkonen
person.familyNameRissanen
person.givenNameJoão
person.givenNameJosé
person.givenNameJoão
person.givenNameFernando
person.givenNameArto
person.givenNameKari
person.identifier.ciencia-idA81C-620E-DD6A
person.identifier.orcid0000-0001-8819-2278
person.identifier.orcid0000-0002-2668-555X
person.identifier.orcid0000-0003-4552-1953
person.identifier.orcid0000-0001-8008-1696
person.identifier.orcid0000-0003-2806-3807
person.identifier.orcid0000-0002-7282-8419
person.identifier.ridB-6816-2008
person.identifier.ridS-1251-2017
person.identifier.ridH-8064-2013
person.identifier.scopus-author-id24360288600
person.identifier.scopus-author-id9233278800
person.identifier.scopus-author-id55161203400
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
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
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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