Please use this identifier to cite or link to this item: http://hdl.handle.net/10773/31458
Full metadata record
DC FieldValueLanguage
dc.contributor.authorDelgado-Pinar, Estefaníapt_PT
dc.contributor.authorCosta, Ana L.pt_PT
dc.contributor.authorGonçalves, Isabel S.pt_PT
dc.contributor.authorPineiro, Martapt_PT
dc.contributor.authorPillinger, Martynpt_PT
dc.contributor.authorMelo, J. Sérgio Seixas dept_PT
dc.date.accessioned2021-06-04T10:26:53Z-
dc.date.issued2021-04-09-
dc.identifier.issn1932-7447pt_PT
dc.identifier.urihttp://hdl.handle.net/10773/31458-
dc.description.abstractThe synthesis, electronic spectral, and photophysical properties of a new bithiophene derivative, (2,2′- bithiophene)-3,5,5′-trisulfonic acid, α2-SO3H, were investigated in organic or aqueous solution, in neat oil form, and in the solid state by cointercalation with different amounts of the surfactant 1- heptanesulfonate (HS) into a layered double hydroxide (LDH). In solution the fluorescence quantum yield (ϕF) of α2-SO3H increases by 1 order of magnitude when compared to the unsubstituted bithiophene (α2) counterpart. However, the most dramatic change is obtained when α2-SO3H is incorporated with HS into a Zn,Al-LDH, where values of ϕF up to 58% are obtained in comparison with values of 4% for neat α2-SO3H (as an oil) and 2% for an LDH containing only α2-SO3H. In the solid state (LDH), in addition to the monomeric form of α2-SO3H, H- and other types of aggregates are present, which are found to be dependent on the percentage HS content. Time-resolved fluorescence studies further rationalize this behavior with single and double exponential decays mirroring the contributions of monomers and aggregates. The study validates a strategy of increasing fluorescence in the solid state by introduction of electrodonating groups and isolation of the α2-SO3H units within the LDH structure with an appropriate surfactant (HS).pt_PT
dc.language.isoengpt_PT
dc.publisherAmerican Chemical Societypt_PT
dc.relationUIDB/00313/2020pt_PT
dc.relationUIDP/00313/2020pt_PT
dc.relationUIDB/50011/2020pt_PT
dc.relationUIDP/50011/2020pt_PT
dc.relation02/SAICT/2017pt_PT
dc.relationPTDC/QUI-QFI/31625/2017pt_PT
dc.relationPTDC/QUI-QOR/28031/2017pt_PT
dc.relationinfo:eu-repo/grantAgreement/EC/FP7/284464/EUpt_PT
dc.relationCEECIND/04136/2018pt_PT
dc.relation022161pt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/COMPETE/126088/PTpt_PT
dc.relationCENTRO-07-CT62-FEDER-002012pt_PT
dc.relationUID/QUI/00313/2019pt_PT
dc.rightsembargoedAccesspt_PT
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectSolid state luminescencept_PT
dc.subjectLayered double hydroxidespt_PT
dc.subjectCointercalationpt_PT
dc.subjectBithiophenept_PT
dc.subjectAggregatespt_PT
dc.titleTuning the behavior of a hydrotalcite-supported sulfonated bithiophene from aggregation-caused quenching to efficient monomer luminescencept_PT
dc.typearticlept_PT
dc.description.versionpublishedpt_PT
dc.peerreviewedyespt_PT
degois.publication.firstPage8294pt_PT
degois.publication.issue15pt_PT
degois.publication.lastPage8303pt_PT
degois.publication.titleJournal of Physical Chemistry Cpt_PT
degois.publication.volume125pt_PT
dc.date.embargo2022-04-09-
dc.relation.publisherversionhttps://pubs.acs.org/doi/10.1021/acs.jpcc.1c00240pt_PT
dc.identifier.doi10.1021/acs.jpcc.1c00240pt_PT
dc.identifier.essn1932-7455pt_PT
Appears in Collections:CICECO - Artigos
DQ - Artigos

Files in This Item:
File Description SizeFormat 
Postprint acs.jpcc.1c00240.pdfPostprint version2.58 MBAdobe PDFView/Open


FacebookTwitterLinkedIn
Formato BibTex MendeleyEndnote Degois 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.