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Title: Luminescence behavior of Eu3+ with thenoyltrifluoroacetonate, sulfoxides and macrocyclics.
Authors: Brito, Hermi Felinto de
Malta, Oscar Manoel Loureiro
Carvalho, Carlos Alberto Alves de
Menezes, Jorge Fernando Silva de
Souza, L. R.
Ferraz, Reginaldo
Keywords: Sulfoxides
Issue Date: 1998
Citation: BRITO, H. F. de et al. Luminescence behavior of Eu3+ with thenoyltrifluoroacetonate, sulfoxides and macrocyclics. Journal of Alloys and Compounds, v. 275-277, p. 254-257, jul. 1998. Disponível em: <>. Acesso em: 01 ago. 2012.
Abstract: In this work we present a study of the luminescence intensity of Eu(TTA) ?xL, where TTA5thenoyltrifluoroacetonate (L denotes 3 DBSO and PTSO sulfoxides, and derivatives of 15C5 and 18C6 macrocyclics). The complexes with 15-crown-5 ether ligand contain two H O molecules. The complexes were characterized by a microanalytical procedure, IR spectroscopy and molar conductance. They show 2 31 high luminescence mainly in the red region. The characteristic emission spectra of Eu in these compounds show uncommonly high 5 7 values of the V intensity parameters, reflecting the hypersensitive behavior of the D F transition and indicating that the rare earth 2 0 2 5 7 ion is in a highly polarizable chemical environment. The D F transition splitting, in the case of Eu(TTA) ?18C6, indicates more than 0 0 3 31 one site of symmetry occupied by Eu .
ISSN: 09258388
metadata.dc.rights.license: O periódico Journal of Alloys and Compounds concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3333160314163.
Appears in Collections:DEQUI - Artigos publicados em periódicos

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