新型稀土铽配合物的合成及其光学性能

Synthesis and Optical Properties of New Terbium(Ⅲ) Complexes

以9-蒽甲酰丙酮(EN)为第一配体,邻菲啰啉(phen)为第二配体,与Tb(Ⅲ)经配位反应合成了两个新型的稀土配合物——Tb(EN)2·2H2O(1)和Tb(EN)2phen·4H2O(2),其结构经IR和元素分析表征。用紫外光谱和荧光光谱研究了1和2的光学性能,结果表明:1和2的λmax均位于255.5 nm,347.5 nm,365.5 nm和384.5 nm。1和2均未产生Tb3+的特征发射峰;在545 nm激发波长激发下,1和2的λex分别位于406 nm和402 nm,λem分别位于596 nm和481 nm。

Two novel rare earth rib（m） complexes, Tb（EN）2 · 2H2O（1） and Tb（EN）2phen · 4H2O（2） , were synthesized by coordination reaction using 1-（9-anthracenyl）-3-methyl-1,3-pmpane- dione（EN） as the first llgand and 1,10-phenanthroline（phen） as the secondary ligand. The struc- tures were characterized by IR and elemental analysis. The optical properties of I and 2 were investi- gated by UV-Vis and fluorescent excitation and emission spectra. The results showed that λmax of 1 and 2 both located in 255.5 nm, 347.5 nm, 365.5 nm and 384.5 nm. 1 and 2 can not emit special fluorescent spectra of Tb3＋ , the A,x located in 406 nm and 402 nm, λmax located in 596 nm and 481 nm, respectively under 545 nm excitation.