稀土与H_2salen配合物的合成与波谱性质  

Synthesis and Characterization of Lanthanide Complexes with H2salen Ligand and Their Spectral Behavior

作　　者：鲁桂[1,2] 姚克敏[1,2] 陈伟国 沈联芳[3] 袁汉珍[3] 

机构地区：[1]浙江大学化学系 [2]杭州大学化学系 [3]中国科学院武汉物理数学所波谱与原子分子物理国家重点实验室

出　　处：《应用化学》1997年第4期1-5,共5页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金;浙江省自然科学基金

摘　　要：合成了稀土Ｎ，Ｎ－亚乙基双（水杨醛缩亚胺）（Ｈ２ｓａｌｅｎ）双核配合物，通过元素分析、热分析、紫外、红外、远红外光谱、磁化率及１Ｈ、１３ＣＮＭＲ谱与Ｔ１的测定，确定了他们与前人合成的配合物有所不同，其化学组成为［Ｌｎ２（Ｈ２ｓａｌｅｎ）３（ＮＯ３）４］（ＮＯ３）２·３Ｈ２Ｏ（Ｌｎ＝Ｌａ，Ｐｒ，Ｎｄ，Ｓｍ，Ｇｄ，Ｔｂ，Ｅｒ，Ｙｂ及Ｙ），并对它们的配位作用、波谱及可能应用进行了探讨．A synthetic method of LnH2salen complexes was described and a series of binuclear complexes were obtained. The complexes were characterized by elemental analysis, TGDTA, UVIR spectroscopy, magnetic susceptibility, 1H, 13C NMR measurements and the 13Cspinlattic relaxation time was investigated for elucidation of their complexation. The composition of the complexes obtained were confirmed as [Ln2(H2salen)3(NO3)4](NO3)2·3H2O, where Ln=La, Pr, Nd, Sm, Gd, Tb, Er, Yb, and Y. A possible structure was suggested and the catalytic activity of the complexes for MMA polymerization was discussed.

关 键 词：水杨醛缩亚胺 稀土 双核配合物 席夫碱 

分 类 号：O614.33[理学—无机化学]