Luminescence character of rare earth complexes with derivatives of benzoic acid

被引：5

作者：

Li, Y ^{[1
]}

Zhang, K ^{[1
]}

Xu, YZ ^{[1
]}

Tao, DL ^{[1
]}

Wang, ZX ^{[1
]}

Gao, HC ^{[1
]}

Wu, JG ^{[1
]}

机构：

[1] Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China

来源：

ACTA PHYSICO-CHIMICA SINICA | 2002年 / 18卷 / 04期

关键词：

rare earth complexes; FT-IR spectrum; UV-Vis spectrum; fluorescent spectrum;

D O I：

10.3866/PKU.WHXB20020402

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A series of Eu, Tb complexes were synthesized with derivatives of benzoic acid as the first ligand and phenanthroline or 2, 2-bipyridine as the second ligand. The structural characterization of the complexes was performed using elemental analysis, FT-IR spectroscopy and UV-Vis spectroscopy. The photoluminescent behaviors of the complexes were investigated using fluorescent spectroscopy. The results showed that introduction of the second ligand improved the solubility of the complexes significantly. As far as the photoluminescent behaviors was concerned, phenanthroline enhanced the fluorescent intensity of Eu complexes but weakened the fluorescent intensity of Tb complexes; while the fluorescent intensity of Tb complexes increased and the fluorescent intensity of Eu complexes decreased upon coordinating with 2, 2-bipyridine. In addition, introducing of various substitutions onto the aromatic ring of benzoic acid brought about considerable variation of the fluorescent intensity of the Eu, Tb complexes.

引用

页码：292 / 296

页数：5

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