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稀土离子(Sm3+)有机配合物的合成及光谱性能的研究
引用本文:孙婷,王耀祥,田维坚,章兴龙,于惠霞,王丽莉,黄昌清,景敏.稀土离子(Sm3+)有机配合物的合成及光谱性能的研究[J].光子学报,2005,34(11):1654-1657.
作者姓名:孙婷  王耀祥  田维坚  章兴龙  于惠霞  王丽莉  黄昌清  景敏
作者单位:1. 中国科学院西安光学精密机械研究所信息光子学研究室,西安,710068
2. 陕西理工学院仪器科学与技术系,汉中,723000
基金项目:陕西省自然科学基金(2002F35)资助项目.
摘    要:本文合成了稀土离子(Sm3+)的三种β二酮类二元有机配合物Sm(HFA)3,Sm(TTA)3和Sm(DBM)3.对配体HFA,HTTA和DBM及配合物Sm(HFA)3,Sm(TTA)3和Sm(DBM)3的吸收光谱和荧光光谱进行了测试与分析.发现Sm(HFA)3和Sm(TTA)3在645 nm处(对应Sm3+的4G5/2→6H9/2跃迁)有很强的荧光峰,可以观察到明显的红色荧光.并且分析了配合物和配体的能级结构、配体的取代基、配体结构对称性以及C-H键含量对配合物光谱性能的影响,证明了HTTA是Sm3+发红色荧光的优良配体.

关 键 词:稀土离子  有机配合物  发光性能  能级匹配
收稿时间:2004-09-01
修稿时间:2004年9月1日

Synthesis and Spectra Properties of Rare-earth (Sm3+) Organic Complexes
Sun Ting,Wang Yaoxiang,Tian Weijian,Zhang Xinglong,Yu Huixia,Wang Lili,Huang Changqing,Jing Min.Synthesis and Spectra Properties of Rare-earth (Sm3+) Organic Complexes[J].Acta Photonica Sinica,2005,34(11):1654-1657.
Authors:Sun Ting  Wang Yaoxiang  Tian Weijian  Zhang Xinglong  Yu Huixia  Wang Lili  Huang Changqing  Jing Min
Institution:Information photonics laboratory,Xi′an Institute of Optics and Precision Mechanics,The Chinese Academy of Sciences ,Xi′an 710068
Abstract:Three rare earth(Sm 3+) binary chelates with Hexafluoroacetyl acetone(HFA), thenoyltrifluoroacetylacetone(HTTA)and dibenzoylmethide(DBM) as the ligands were synthesized, respectively. The absorption and fluorescence properties of the ligands and their chelates Sm(TTA)_3 , Sm (HFA)_3, Sm(DBM)_3 were investigated. For both Sm(HFA)_3 and Sm(TTA)_3, there existed a strong fluorescence peak in 645 nm, which ascribed to the transition of 4G_ 5/2→6H_ 9/2 of Sm 3+. However, the plentiful C-H grouped on the rare earth complex Sm(DBM)_3 presumably was quenched the luminescence by nonradiative dissipation of energy which brought from the high energy C-H vibrations, resulting in no peaks over all inspected wavelengths. It was also found the fluorescence intensity of complex Sm(TTA)_3 was the topmost, which was firstly attributed to two substituents on the ligand , -CF_3 and s. Secondly, among three complexes, the match of Sm 3+ and HTTA was the best and lead to stronger fluorescence intensity of complex Sm(TTA)_3, accord
Keywords:Rare-earth  Organic complexes  Spectra properties  Energy level match
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