Synthesis and photoluminescence of three europium(III) ternary complexes with new secondary ligands of different structure

Jibing Yuan, Jiahang Li, Louis M. Leuang, Shu Kong SO, Jianxin Shi, Menglian Gong*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Three new 1,10-phenanthroline derivatives, dipyrido (3,2-f:2,3-h) quinoxaline (DPQN), imidazo (5,6-f)-(1,10)-phenanthroline (IP) and 3-phenyl-imidazo (5,6-f)-(l,10)-phenanthroline (PIP) were designed and synthesized as a secondary ligand to coordinate with europium(III) ion while dibenzoylmethane (DBM) was used as the first ligand. The compositions of the ligands and the europium(III) ternary complexes were confirmed by elementary analysis, IR and 1H-NMR spectroscopy. The UV-visible absorption spectra, thermal stability, photoluminescence spectra, quantum yield and fluorescence life time of the Eu(III) complexes were investigated. The effect of the structure of the secondary ligand on the photoluminescence of the complexes was discussed. The results show that the synthesized Eu(III) complexes are good red-emitting materials for potential application in fabrication of organic electroluminescence devices.

Original languageEnglish
Pages (from-to)461-465
Number of pages5
JournalJournal of Rare Earths
Volume22
Issue number4
Publication statusPublished - Aug 2004

Scopus Subject Areas

  • Chemistry(all)
  • Geochemistry and Petrology

User-Defined Keywords

  • Europium ternary complexes
  • Inorganic chemistry
  • Luminescent materials
  • Photoluminescence
  • Rare earths
  • Secondary ligands

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