School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, People's Republic of China.
Luminescence. 2012 Nov-Dec;27(6):459-65. doi: 10.1002/bio.1375. Epub 2012 Jan 4.
To explore the relationship between the structure of the ligands and the luminescent properties of the lanthanide complexes, luminescent lanthanide complexes of a new tripodal ligand, featuring N-thenylsalicylamide arms, were synthesized and characterized by elemental analysis, IR and TGA measurements. Photophysical properties of the complexes were studied by means of UV - visible absorption and steady-state luminescence spectroscopy. The results of UV - vis spectra indicate that metal binding does not disturb the electronic structure of the ligand. Excited-state luminescence lifetimes and quantum yields of the complexes were determined. The photoluminescence analysis suggested that there is an efficient ligand - Ln(III) energy transfer for the Tb(III) complex, and the ligand is an efficient 'antenna' for Tb(III). From a more general perspective, the results demonstrated the potential application of the lanthanide complex as luminescent materials in material chemistry.
为了探究配体结构与镧系金属配合物发光性能之间的关系，我们合成了一种新型三脚架配体的发光镧系金属配合物，该配体的结构特征为 N- 苯基水杨酰胺臂，并通过元素分析、IR 和 TGA 测量对其进行了表征。通过紫外可见吸收光谱和稳态荧光光谱研究了配合物的光物理性质。紫外可见光谱的结果表明，金属配位不会干扰配体的电子结构。测定了配合物的激发态荧光寿命和量子产率。荧光分析表明，Tb(III)配合物中存在有效的配体-镧系金属能量转移，并且配体是 Tb(III)的有效“天线”。从更普遍的角度来看，这些结果表明该镧系金属配合物在材料化学中作为发光材料具有潜在的应用。
