Xi Peng, Gu XiaoHua, Chen CaoFeng, He YuXian, Huang XiangAn
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 200051, PR China.
Spectrochim Acta A Mol Biomol Spectrosc. 2007 Mar;66(3):667-71. doi: 10.1016/j.saa.2006.04.009. Epub 2006 Apr 28.
A novel ligand with two carboxylic groups has been synthesized. The composition and structure of the ligand were characterized by IR, (1)H NMR and MS spectrometry. The highly luminescent intensity complexes were prepared with the ligand and phen. The IR, solid state (13)C NMR and fluorescent spectra of the complex were studied. IR absorption spectra indicate that the ligand is coordinated to the Eu(3+) ion, and chemical bonds are formed between Eu(3+) ion and nitrogen atoms of phen. The fluorescent spectra illustrate that the complex has an excellent luminescence, indicating the ligand favors energy transfer to the emitting energy level of Eu(3+). The influences of pH and reaction solvent on the fluorescence intensity of the complex were also discussed.
一种含有两个羧基的新型配体已被合成。通过红外光谱、¹H核磁共振和质谱分析法对该配体的组成和结构进行了表征。用该配体和邻菲罗啉制备了高发光强度的配合物。研究了该配合物的红外光谱、固态¹³C核磁共振光谱和荧光光谱。红外吸收光谱表明该配体与Eu(3+)离子配位，并且在Eu(3+)离子和邻菲罗啉的氮原子之间形成了化学键。荧光光谱表明该配合物具有优异的发光性能，表明该配体有利于能量转移到Eu(3+)的发射能级。还讨论了pH值和反应溶剂对该配合物荧光强度的影响。
