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  • 梁春群,张丽霞.钐、铕-3-噻吩乙酸二元、三元配合物的合成及表征[J].广西科学,2012,19(1):64-68.    [点击复制]
  • LIANG Chun-qun,ZHANG Li-xia.Synthesis and Characterization of the Binary and Ternary Complexes of Rare Earth with 3-Thiopheneacetic acid and 1,10-Phenanthroline[J].Guangxi Sciences,2012,19(1):64-68.   [点击复制]
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钐、铕-3-噻吩乙酸二元、三元配合物的合成及表征
梁春群, 张丽霞
0
(广西师范学院化学与生命科学学院, 广西南宁 530001)
摘要:
以3-噻吩乙酸为第一配体合成钐、铕的二元配合物,以3-噻吩乙酸为第一配体,phen为第二配体合成钐、铕的三元配合物,通过元素分析和EDTA滴定分析确定其通式为REY32H2O、REY3phen(RE=Eu,Sm;Th=3-噻吩乙酸根,phen=邻菲啰啉)后,测定4种配合物的红外光谱、紫外光谱和荧光光谱及TG-DTG曲线。结果表明,由于第二配体的加入,对稀土离子的发光起到了敏化作用,增强了稀土离子的发光强度,并且三元配合物热稳定性比二元配合物的热稳定性好。
关键词:  Sm3+  Eu3+  3-噻吩乙酸  1,10-邻菲啰啉  发光性质
DOI:
投稿时间:2011-09-07修订日期:2012-01-13
基金项目:广西教育厅基金项目(201010LX306)和广西师范学院基础研究基金项目(0710A001)资助。
Synthesis and Characterization of the Binary and Ternary Complexes of Rare Earth with 3-Thiopheneacetic acid and 1,10-Phenanthroline
LIANG Chun-qun, ZHANG Li-xia
(College of Chemistry and Life Science, Guangxi Teachers Education University, Nanning, Guangxi, 530001, China)
Abstract:
Four solid complexes of rare earth with 3-thiopheneacetic acid and 1, 10-phenanthroline were synthesized, and the general formula of these complexes was proved to be REY32H2O and REY3 phen (RE=Eu,Sm;Th=3-Thiopheneacetic acid,phen=Phenanthroline)by element analyse and titration analyse.These complexes were characterized by IR spectroscopy,UV-spectroscopy,Fluorescent spectrum and TG-DTG.The results showed that RETh3 phen had better thermal stability than REY32H2O, and that adding the second ligand could enhance Eu3+ or Sm3+ ion fluorescence intensity.
Key words:  Europium(Ⅲ)  samarium(Ⅲ)  3-thiopheneacetic acid  1,10-phenanthroline  luminescence properties

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