Eu^(3+),Tb^(3+)混配配合物的激光诱导荧光

The Laser Induced Fluorescence Spectra of Eu(Ⅲ) and Tb(Ⅲ) Complexes with Mixed β-diketone and Organic Ligands

利用激光诱导荧光技术研究了两种三价稀土金属离子（EU3＋，Tb3＋）的μ－二酮与有机配体混配络合物中金属离子的寿命及其能级结构，得到了Eu3＋的能级常数．

The emission spectra and their lifetimes of the complexes of Eu(Ⅲ) and Tb(Ⅲ) withmiXed β-diketone and organic ligands were studied by laser induced fiuorescence technique. Theenergy levels of the centered metal ions were less affected by different ligands (less than 100cm-1),but the lifetimes and the emission intensities of the ions depends on the efficiency of the energytransfer between the ligand and the ions. The energy levels split in strong ligand fields. Theemission spectra of Eu(Ⅲ) complexes gave a set of energy constants of the 7F and 5D states ofEu(Ⅲ) as following: for 7F: A=305cm-1, B0=3660cm-1; for 5D: A=1744cm-1, B=27699cm-1.