Synthesis, structural characterization and luminescence studies of a novel europium(III) complex [Eu(DBM)3(TPTZ)] (DBM: Dibenzoylmethanate; TPTZ: 2,4,6-tri(2-pyridyl)-1,3,5-triazine)

Channa R. De Silva, Jiafu Wang, Michael D. Carducci, S. Asha Rajapakshe, Zhiping Zheng

Research output: Contribution to journalArticle

54 Scopus citations

Abstract

A novel Eu(III) complex featuring three dibenzoylmethanate (DBM) ligands and a Lewis base ligand 2,4,6-tri(2-pyridyl)-1,3,5-triazine (TPTZ) was synthesized. This novel complex was characterized by 1H NMR, FAB-MS, and elemental analyses. The structure of the complex was established by single crystal X-ray diffraction. The nonacoordinate europium ion features six oxygen atoms of the three DBM ligands and three nitrogen atoms from the TPTZ ligand, forming a distorted monocapped square antiprism. Spectroscopic studies revealed that the electronic absorption of the complex is essentially ligand-based, while the emission is characteristic of a Eu(III) ion. It is concluded that the metal-centered red emission is promoted by the ligand-assisted energy transfer, namely the antenna effects.

Original languageEnglish (US)
Pages (from-to)630-634
Number of pages5
JournalInorganica Chimica Acta
Volume357
Issue number2
DOIs
StatePublished - Jan 30 2004

Keywords

  • 2,4,6-Tri(2-pyridyl)-1,3,5-triazine
  • Dibenzoylmethane
  • Europium complexes
  • Luminescence properties
  • X-ray crystallography

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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