铕(Ⅲ)-苯甲酸衍生物配位化合物中Eu(Ⅲ)离子格位

Eu(Ⅲ) Sites in Complexes of Eu(Ⅲ)-Benzoic Acid Derivatives

以 2 ,3 二甲氧基苯甲酸 (2 ,3 HDMOBA)和 4 甲基苯甲酸 (p HMBA)为配体 ,合成了新的稀土配合物Eu(2 ,3 DMOBA) 3 和Eu(p MBA) 3 。在 77K下测定了高分辨激发光谱和时间分辨谱。配合物Eu(2 ,3 DMOBA) 3中Eu(Ⅲ )离子格位只有一种 ,配合物Eu(p MBA) 3 中确有化学环境类似的多种类型的Eu(Ⅲ )离子。

Complexes Eu(2,3-DMOBA)_3 and Eu( p -MBA)_3 were synthesized using ion Eu(Ⅲ) with 2,3-dimethoxybenzoic acid(2,3-HDMOBA) and 4-methylbenzoic acid( p -HMBA). Highly resolved laser-excited and time resolved spectra at 77 K show that there is one Eu(Ⅲ) site in the complex Eu(2,3-DMOBA)_3, while Eu( p -MBA)_3 has different Eu 3+ ions with similar chemical environment.