Synthesis and luminescent properties of novel pyrazolone rare earth complexes
来源期刊：JOURNAL OF RARE EARTHS2011年第1期
论文作者：保积庆 汤春花 唐瑞仁
文章页码：15 - 19
摘 要：A novel pyrazolone pyridine-containing ligand,2,6-bis（1-phenyl-4-ethoxycarbonyl-5-pyrazolone-3-yl）pyridine （H2L） was de-signed and synthesized from pyridine-2,6-dicarboxylic acid （1）,and its Eu（III） and Tb（III） complexes were prepared.The ligand and com-plexes were characterized in detail based on FT-IR spectra,1H NMR,elemental analysis and thermal analysis,and the formula of Ln2L3·4H2O （Ln=Eu or Tb） of rare earth complexes was confirmed.The UV-vis absorption spectra and photoluminescence properties of the complexes were investigated,which showed that the Eu（III） and Tb（III） ions could be sensitized efficiently by the ligand （H2L） and emit the photolumi-nescence with high intensity,narrow half-peak width,and monochromic light.The results indicated that the complexes showed potential as excellent luminescent materials.
保积庆1，汤春花2，唐瑞仁2
1. Resources and Environment Technical Research Institute,Jiaxing University2. School of Chemistry and Chemical Engineering,Central South University
摘 要：A novel pyrazolone pyridine-containing ligand,2,6-bis（1-phenyl-4-ethoxycarbonyl-5-pyrazolone-3-yl）pyridine （H2L） was de-signed and synthesized from pyridine-2,6-dicarboxylic acid （1）,and its Eu（III） and Tb（III） complexes were prepared.The ligand and com-plexes were characterized in detail based on FT-IR spectra,1H NMR,elemental analysis and thermal analysis,and the formula of Ln2L3·4H2O （Ln=Eu or Tb） of rare earth complexes was confirmed.The UV-vis absorption spectra and photoluminescence properties of the complexes were investigated,which showed that the Eu（III） and Tb（III） ions could be sensitized efficiently by the ligand （H2L） and emit the photolumi-nescence with high intensity,narrow half-peak width,and monochromic light.The results indicated that the complexes showed potential as excellent luminescent materials.
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