Synthesis and Properties of Eu（Ⅲ） Complexes with Aromatic Carboxylic Acid, Dibenzoylmethane and 1, 10-phenanthroline
来源期刊：Journal of Rare Earths2007年第S1期
论文作者：赵娜 王淑萍 徐丽娟 王瑞芬 张建军
文章页码：37 - 40
摘 要：In order to obtain an excellent luminescent material, herein four complexes of Eu（Ⅲ） were synthesized with dibenzoylmethane （DBM）, benzoic acid （BA） and phenylacetic acid （PLA） as the anion ligands, and 1, 10-phenanthroline （phen） as the neutral ligand. The complexes Eu（DBM）3phen （1）, Eu（DBM）（BA）2phen （2）, Eu（DBM）（PLA）2phen （3） and Eu（DBM）2（PLA）phen （4） were characterized by elemental analysis, IR and TG-DTG. In these complexes, the Eu（Ⅲ） ions are bonded to the oxygen atoms of carboxylate （or dibenzoylmethane）, and the nitrogen atoms of phen. The TG-DTG analysis indicated that these complexes are thermally stable. Their excitation and luminescence spectra revealed that the complexes emitted the characteristic luminescence of Eu（Ⅲ）: 579 nm （5D0→7F0）, 589 nm （5D0→7F1）, 610 nm （5D0→7F2）. The emission peak at ca. 610 nm was the most intensive. The order of their fluorescence intensity was: Eu（DBM）2（PLA）phen （4）>Eu（DBM）（PLA）2phen （3）>Eu（DBM）3phen （1）>Eu（DBM）（BA）2phen （2）.
赵娜，王淑萍，徐丽娟，王瑞芬，张建军
摘 要：In order to obtain an excellent luminescent material, herein four complexes of Eu（Ⅲ） were synthesized with dibenzoylmethane （DBM）, benzoic acid （BA） and phenylacetic acid （PLA） as the anion ligands, and 1, 10-phenanthroline （phen） as the neutral ligand. The complexes Eu（DBM）3phen （1）, Eu（DBM）（BA）2phen （2）, Eu（DBM）（PLA）2phen （3） and Eu（DBM）2（PLA）phen （4） were characterized by elemental analysis, IR and TG-DTG. In these complexes, the Eu（Ⅲ） ions are bonded to the oxygen atoms of carboxylate （or dibenzoylmethane）, and the nitrogen atoms of phen. The TG-DTG analysis indicated that these complexes are thermally stable. Their excitation and luminescence spectra revealed that the complexes emitted the characteristic luminescence of Eu（Ⅲ）: 579 nm （5D0→7F0）, 589 nm （5D0→7F1）, 610 nm （5D0→7F2）. The emission peak at ca. 610 nm was the most intensive. The order of their fluorescence intensity was: Eu（DBM）2（PLA）phen （4）>Eu（DBM）（PLA）2phen （3）>Eu（DBM）3phen （1）>Eu（DBM）（BA）2phen （2）.
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