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dc.contributor.authorMarques, Lippy F.-
dc.contributor.authorCantaruti Júnior, Anderson A.B.-
dc.contributor.authorRibeiro, Sidney J.L.-
dc.contributor.authorScaldini, Felipe M.-
dc.contributor.authorMachado, Flávia C.-
dc.identifier.citationOptical Materials, v. 35, n. 12, p. 2357-2365, 2013.-
dc.description.abstractLanthanide compounds of general formula [Ln2(2,5-tdc) 3(dmf)2(H2O)2] ·2dmf·H2O (Ln = Eu(III) (1), Tb(III) (2), Gd(III) (3) and Dy(III) (4), dmf = N,N′-dimethylformamide and 2,5-tdc2- = 2,5-thiophedicarboxylate anion) were synthesized and characterized by elemental analysis, X-ray powder diffraction patterns, thermogravimetric analysis and infrared spectroscopy. Phosphorescence data of Gd(III) complex showed that the triplet states (T1) of 2,5-tdc2- ligand have higher energy than the main emitting states of Eu(III), Tb(III) and Dy(III), indicating that 2,5-tdc2- ligand can act as intramolecular energy donor for these metal ions. An energy level diagram was used to establish the most relevant channels involved in the ligand-to-metal energy transfer. The high value of experimental intensity parameter Ω2 for the Eu(III) complex indicate that the europium ion is in a highly polarizable chemical environment. The emission quantum efficiency (η) of the 5D0 emitting level of Eu(III) was also determined. The complexes act as possible light conversion molecular devices (LCMDs). © 2013 Elsevier B.V. All rights reserved.en
dc.subjectPhotoluminescence 2,5-Thiophenedicarboxylic acid Lanthanides-
dc.titleSynthesis, structural characterization and photophysical properties of highly photoluminescent crystals of Eu(III), Tb(III) and Dy(III) with 2,5-thiophenedicarboxylateen
dc.contributor.institutionUniversidade Federal de Juiz de Fora (UFJF)-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationDepartamento de Química-ICE Universidade Federal de Juiz de Fora, Juiz de Fora, MG 36036-330-
dc.description.affiliationInstitute of Chemistry São Paulo State Univ. UNESP, CP 355, Araraquara, SP 14801-970-
dc.description.affiliationUnespInstitute of Chemistry São Paulo State Univ. UNESP, CP 355, Araraquara, SP 14801-970-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofOptical Materials-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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