环庚三烯酚酮稀土配合物的拉曼光谱研究

本文应用拉曼光谱研究了镧系金属镧 ,钕 ,钐和镱与环庚三烯酚酮配合物的配位方式及结构。研究结果表明 ,金属与环庚三烯酚酮配位后原对应于OH的伸缩振动谱峰消失 ,同时部分相关的谱峰频率也发生了明显的位移 ,在低波数 4 0 0 -5 0 0cm- 1区间检测到新的谱峰 ,并且该谱峰的位置随配合物中金属的不同而不同。根据拉曼光谱的研究结果推断了金属与配体的配位方式以及所得稀土金属配合物可能的结构。

Raman Spectroscopic Studies on the Complexes of Tropolone and Rare Earth(Ln = La、Na、Sm、Yb)

The Raman spectra of four complexes of La, Nd, Sm, Yb with tropolone have been reported. The results showed that the stretching vibrational band of OH disappeared, and the frequencies shifts of some related bands of the ligand were observed after it coordinated with La, Nd, Sm and Yb. In the low frequency region, a new band at 400-500 cm -1 was detected in the four complexes respectively. We also found that frequency of this band was depended on the metal coordinated with tropolone. Based on the Raman results, the structures of the four complexes were proposed.