Publicação: Synthesis, structural characterization and photophysical properties of highly photoluminescent crystals of Eu(III), Tb(III) and Dy(III) with 2,5-thiophenedicarboxylate
dc.contributor.author | Marques, Lippy F. | |
dc.contributor.author | Cantaruti Júnior, Anderson A.B. | |
dc.contributor.author | Ribeiro, Sidney J.L. [UNESP] | |
dc.contributor.author | Scaldini, Felipe M. | |
dc.contributor.author | Machado, Flávia C. | |
dc.contributor.institution | Universidade Federal de Juiz de Fora (UFJF) | |
dc.contributor.institution | Universidade Estadual Paulista (Unesp) | |
dc.date.accessioned | 2014-05-27T11:30:47Z | |
dc.date.available | 2014-05-27T11:30:47Z | |
dc.date.issued | 2013-10-01 | |
dc.description.abstract | Lanthanide 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.description.affiliation | Departamento de Química-ICE Universidade Federal de Juiz de Fora, Juiz de Fora, MG 36036-330 | |
dc.description.affiliation | Institute of Chemistry São Paulo State Univ. UNESP, CP 355, Araraquara, SP 14801-970 | |
dc.description.affiliationUnesp | Institute of Chemistry São Paulo State Univ. UNESP, CP 355, Araraquara, SP 14801-970 | |
dc.format.extent | 2357-2365 | |
dc.identifier | http://dx.doi.org/10.1016/j.optmat.2013.06.034 | |
dc.identifier.citation | Optical Materials, v. 35, n. 12, p. 2357-2365, 2013. | |
dc.identifier.doi | 10.1016/j.optmat.2013.06.034 | |
dc.identifier.issn | 0925-3467 | |
dc.identifier.scopus | 2-s2.0-84885085852 | |
dc.identifier.uri | http://hdl.handle.net/11449/76730 | |
dc.identifier.wos | WOS:000326660500052 | |
dc.language.iso | eng | |
dc.relation.ispartof | Optical Materials | |
dc.relation.ispartofjcr | 2.320 | |
dc.relation.ispartofsjr | 0,592 | |
dc.rights.accessRights | Acesso restrito | |
dc.source | Scopus | |
dc.subject | Photoluminescence 2,5-Thiophenedicarboxylic acid Lanthanides | |
dc.title | Synthesis, structural characterization and photophysical properties of highly photoluminescent crystals of Eu(III), Tb(III) and Dy(III) with 2,5-thiophenedicarboxylate | en |
dc.type | Artigo | |
dcterms.license | http://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy | |
dspace.entity.type | Publication | |
unesp.author.orcid | 0000-0003-3286-9440[3] | |
unesp.campus | Universidade Estadual Paulista (UNESP), Instituto de Química, Araraquara | pt |
unesp.department | Química Inorgânica - IQAR | pt |