The role played by structural and energy parameters of β-Diketones derivatives as antenna ligands in Eu(III) complexes

Lily Arrué, Julián Santoyo-Flores, Nancy Pizarro, Ximena Zarate, Dayan Páez-Hernández, Eduardo Schott

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

Resumen

Structural and energy parameters role of six β-diketone antennas (symmetry, bulkiness, quenching bonds, donor groups and coordination) were analyzed. Six β-diketone derivatives and its complexes Eu(Phen)(X)3 and Gd(Phen)(X)3(X = β-diketone), were synthetized, characterized, experimentally studied through photophysical characterization. To analyze the contribution of each antenna to the photophysical properties, TD-DFT calculations were performed. To elucidate the antennas/Eu(III) energy levels involved in the energy transfer process CASSCF calculations were performed. Two antenna ligands effectively feed the europium center. A ligand without symmetry, with donor groups, without quenching bonds, and capable to fulfill the energy requirements, is the best antenna ligand for these complexes.

Idioma originalInglés
Número de artículo138600
PublicaciónChemical Physics Letters
Volumen773
DOI
EstadoPublicada - 16 jun 2021

Áreas temáticas de ASJC Scopus

  • Física y astronomía (todo)
  • Química física y teórica

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