Luminescence study of the [Eu(bpy)(2)](3+) supported on Y zeolite

Luminescence study of the [Eu(bpy)(2)](3+) supported on Y zeolite

Autor Rosa, ILV Google Scholar
Serra, O. A. Google Scholar
Nassar, E. J. Google Scholar
Instituição Universidade Federal de São Paulo (UNIFESP)
Resumo The photophysical properties of Eu3+ and its complex with 2,2'-bipyridine (bpy), [Eu(bpy)(2)](3+), supported on k' zeolite are reported. the ability of the bpy sensitizing Eu3+ ions into the Y zeolite cages is proved by the strong excitation at 319 nm via the ligand. the different D-5(0) --> F-7(1)/D-5(0) --> F-7(2) ratio for the sample indicates structural changes in the Eu3+ surrounding. the Eu3+ lifetimes for Eu(bpy)(2)Y (tau(1) = 0.17 ms: tau(2) = 0.43 ms) and [Eu(bpy)(2)](3+) in methanol(tau = 0.32 ms) is in agreement with these data. These results show that the zeolites are a very efficient host lattice for the luminescence of the rare earth ions bounded to an appropriate ligand as antenna.
Palavra-chave zeolites
luminescence
europium complexes
Idioma Inglês
Data de publicação 1997-06-01
Publicado em Journal of Luminescence. Amsterdam: Elsevier B.V., v. 72-4, p. 532-534, 1997.
ISSN 0022-2313 (Sherpa/Romeo, fator de impacto)
Publicador Elsevier B.V.
Extensão 532-534
Fonte http://dx.doi.org/10.1016/S0022-2313(96)00375-4
Direito de acesso Acesso restrito
Tipo Artigo
Web of Science WOS:A1997XK42800202
Endereço permanente http://repositorio.unifesp.br/handle/11600/25734

Exibir registro completo




Arquivo

Arquivo Tamanho Formato Visualização

Não existem arquivos associados a este item.

Este item está nas seguintes coleções

Buscar


Navegar

Minha conta