1. Universidade do Minho
  2. Escola de Ciências | School of Sciences
  3. Centro\Departamento de Química
  4. CDQuim - Artigos (Papers)
Utilize este identificador para referenciar este registo: https://hdl.handle.net/1822/15117

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Campo DCValorIdioma
dc.contributor.authorBatista, Rosa Maria Ferreira-
dc.contributor.authorOliveira, Elisabete-
dc.contributor.authorCosta, Susana P. G.-
dc.contributor.authorLodeiro, Carlos-
dc.contributor.authorRaposo, M. Manuela M.-
dc.contributor.authorFerreira, R. Cristina M.-
dc.date.accessioned2011-12-13T14:14:37Z-
dc.date.available2011-12-13T14:14:37Z-
dc.date.issued2011-
dc.date.submitted2011-
dc.identifier.issn0039-9140por
dc.identifier.urihttps://hdl.handle.net/1822/15117-
dc.description.abstractA series of novel (oligo)thienyl-imidazobenzocrown ethers were synthesised through a simple method and evaluated as fluorimetric chemosensors for transition metal cations. Interaction with Ni2+, Pd2+, and Hg2+ in ACN/DMSO solution (99:1) was studied by absorption and emission spectroscopy. Chemoselectivity studies in the presence of Na+ were also carried out and a fluorescence enhancement upon chelation (CHEF) effect was observed following Hg2+ complexation. Considering that most systems using fluorescence spectroscopy for detecting Hg2+ are based on the complexation enhancement of the fluorescence quenching (CHEQ) effect, the present work represents one of the few examples for sensing of Hg2+ based on a CHEF effect.por
dc.description.sponsorshipFundação para a Ciência e a Tecnologia (FCT) - PTDC/QUI/66250/2006, SFRH/BD/36396/2007, SRFH/BPD/72557/2010por
dc.language.isoengpor
dc.publisherElsevier 1por
dc.relationinfo:eu-repo/grantAgreement/FCT/5876-PPCDTI/66250/PT-
dc.rightsopenAccesspor
dc.subjectBenzo-15-crown-5 etherpor
dc.subject(oligo)thiophenepor
dc.subjectImidazolepor
dc.subjectFluorescent chemosensorspor
dc.subjectHg2+por
dc.subjectPd2+por
dc.subjectCHEF effectpor
dc.subjectBenzo-15-crown-5 ether (Oligo)thiophenepor
dc.title(Oligo)thienyl-imidazo-benzocrown ether derivatives : synthesis, photophysical studies and evaluation of their chemosensory propertiespor
dc.typearticlepor
dc.peerreviewedyespor
dc.relation.publisherversionhttp://www.journals.elsevier.com/por
sdum.publicationstatuspublishedpor
oaire.citationStartPage2470por
oaire.citationEndPage2478por
oaire.citationIssue5por
oaire.citationTitleTalantapor
oaire.citationVolume85por
dc.identifier.doi10.1016/j.talanta.2011.07.107por
dc.subject.wosScience & Technologypor
sdum.journalTalantapor
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