Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/27846
DC FieldValueLanguage
dc.contributor.authorCastro, Catherine S. de-
dc.contributor.authorMelo, J. Sérgio Seixas de-
dc.contributor.authorFernández-Lodeiro, Adrián-
dc.contributor.authorNúñez, Cristina-
dc.contributor.authorLodeiro, Carlos-
dc.date.accessioned2014-12-10T10:45:55Z-
dc.date.available2014-12-10T10:45:55Z-
dc.date.issued2014-09-
dc.identifier.citationCASTRO, Catherine S. de [et. al] - Spectroscopic and photophysical studies of a naphthalene-based emissive probe for metal cations. "Inorganic Chemistry Communications". ISSN 1387-7003. Vol. 47 (2014) p. 27–32por
dc.identifier.issn1387-7003-
dc.identifier.urihttp://hdl.handle.net/10316/27846-
dc.description.abstractA comprehensive photophysical characterization of a bis-naphthalene derivative, L, was carried out in acetonitrile, using UV–Vis absorption, steady-state and time-resolved emission spectroscopy. It was found that in the 250–400 nm region, the absorption spectra showed two bands with maxima at ~ 220 nm and ~ 292 nm whereas the emission spectrum showed a band settled between 300 and 550 nm. A detailed time-resolved investigation (in the ps and ns time domain) showed that the fluorescence decay of L in dichloromethane was bi-exponential indicative of the presence of a ground-state equilibrium involving two species: monomeric (absorption of a single naphthalene unit) and dimeric. Upon addition of Cu2 +, Zn2 +, Cd2 + or Hg2 + metal cations in acetonitrile a quenching of the fluorescence emission was observed. From time-resolved data, it is shown that the fluorescence contribution of the species with the longest decay time was sensitive to the explored metal ions.por
dc.language.isoengpor
dc.publisherElsevierpor
dc.rightsopenAccesspor
dc.subjectNaphthalenepor
dc.subjectMetalspor
dc.subjectFluorescence quenchingpor
dc.subjectTime-resolved fluorescencepor
dc.subjectDimerpor
dc.titleSpectroscopic and photophysical studies of a naphthalene-based emissive probe for metal cationspor
dc.typearticlepor
degois.publication.firstPage27por
degois.publication.lastPage32por
degois.publication.titleInorganic Chemistry Communicationspor
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S1387700314002913por
dc.peerreviewedYespor
dc.identifier.doi10.1016/j.inoche.2014.07.007-
degois.publication.volume47por
item.languageiso639-1en-
item.grantfulltextopen-
item.fulltextCom Texto completo-
Appears in Collections:I&D CQC - Artigos em Revistas Internacionais
FCTUC Química - Artigos em Revistas Internacionais
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