Synthesis, Characterization and Luminescence of Europium, Terbium Complexes of 1,1'-(Pyridin-2,6-Diyl) Bis-3-P-Tolylpropane-1,3-Dione

Abstract:

A new ligand, 1,1'-(pyridin-2,6-diyl)bis-3-p-tolylpropane-1,3-dione(H₂L), was prepared and its crystal structure displays its enol isomer. The binary complex, Ln₂L₃·4H₂O [Ln = Eu(III) and Tb(III)], were synthesized by the reaction of synthesized ligand (H₂L) and Ln(III). With 1,10-phenanthroline (Phen) as the synergistic ligand, the ternary complex, Ln₂L₃(Phen)₂ [Ln = Eu(III) and Tb(III)], were synthesized. The compounds were characterized by ¹H-NMR spectroscopy, MS, IR, UV, DTA-TG and fluorescence spectrum. The luminescent properties of the ligand and its complexes were investigated and the results showed that the prepared ligand was a good luminescent compound, all complexes emitted characteristic luminescence of corresponding lanthanide ions and 1,10-phenanthroline as the synergistic ligand can obviously enhance the luminescence of Eu(III) in the ternary complex.

• Periodical: Advanced Materials Research (Volumes 306-307)
• Pages: 228-233
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.306-307.228
• Online since: August 2011
• Authors: Jin Liang Zhu, Sheng Li Liu, Liang Cai Yu, Tao Ouyang
• Keywords: 1,1'-(pyridin-2,6-Diyl)bis-3-P-Tolylpropane-1,3-Dione, Complex, Luminescence

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