Estimating the Donor-Acceptor Distance To Tune the Emission Efficiency of Luminescent Lanthanide Compounds.

Monteiro, Jorge H S K; de Bettencourt-Dias, Ana; Sigoli, Fernando A

Monteiro, Jorge H S K; de Bettencourt-Dias, Ana; Sigoli, Fernando A.

Afiliação

Monteiro JH; Institute of Chemistry, University of Campinas , Campinas, São Paulo, Brazil.
de Bettencourt-Dias A; Department of Chemistry, University of Nevada , Reno, Nevada 89557, United States.
Sigoli FA; Department of Chemistry, University of Nevada , Reno, Nevada 89557, United States.

Inorg Chem ; 56(2): 709-712, 2017 Jan 17.

Article em En | MEDLINE | ID: mdl-28004920

RESUMO

The influence of the donor-acceptor distance RL on the photophysical properties, including the emission quantum yield, of two europium complexes with the same coordination number, and thus similar microsymmetries, was investigated by spectroscopic and computational methods. K3[Eu(dipicCbz)3] was synthesized using the new ligand dipicCbz and its photophysical properties compared to Cs3[Eu(dipic)3]. We found that a 50% increase in RL from 4.1 to 6.5 Å results in a substantial decrease in the emission efficiency from 24 to 1.8%.

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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Inorg Chem Ano de publicação: 2017 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos

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