Ln(Ⅲ)-Ni(Ⅱ)与双水杨醛缩乙二胺席夫碱异核配合物的合成与波谱  

SYNTHESIS AND MAGNETIC RESONANCE SPECTRA OF HETERONUCLEAR Ln(Ⅲ) Ni(Ⅱ) COMPLEXES WITH BIS SALICYLALDEHYDE ETHYLENEDIAMINE SCHIFF BASE

作　　者：鲁桂[1] 姚克敏[1] 陈德余[1] 沈联芳[2] 袁汉珍[2] 

机构地区：[1]浙江大学化学系 [2]中国科学院武汉物理与数学研究所波谱与原子分子物理国家重点实验室

出　　处：《波谱学杂志》1998年第4期327-333,共7页Chinese Journal of Magnetic Resonance

基　　金：国家自然科学基金;浙江省自然科学基金;波谱与原子分子物理国家重点实验室基金

摘　　要：合成了双水杨醛缩乙二胺席夫碱（ＳＡＬＥＮ）与镍的配合物Ｎｉ３（ＳＡＬＥＮ）２（ＮＯ３）６·Ｈ２Ｏ及镧系镍的异核配合物Ｌｎ２Ｎｉ３（ＳＡＬＥＮ）６（ＮＯ３）１２·Ｈ２Ｏ（Ｌｎ＝Ｌａ，Ｎｄ，Ｓｍ，Ｇｄ，Ｙｂ，Ｙ）．以紫外、红外光谱、磁化率，特别是１ＨＮＭＲ及ＥＰＲ波谱等方法研究了它们在组成、结构和配位等方面的异同．ＧｄＮｉＳＡＬＥＮ配合物的ＥＰＲ谱表明其在低温ＴＨＦ中呈“单峰效应”．文中讨论了配合物在不同溶剂中峰宽的相对关系。A series of heteronuclear complexes of Ln(Ⅲ ) Ni(Ⅱ) and Ni(Ⅱ) complexes with bissalicylaldehyde ethylenediamine (SALEN) have been synthesized. They are formulated as Ln 2Ni 3(SALEN) 6(NO 3) 12 \5H 2O(Ln=La,Nd,Sm,Gd,Yb,Y) and Ni 3(SALEN) 2(NO 3) 6\5H 2O, respectively. The differences in their compositions, structures and coordinations have been investigated by UV, IR, magnetic susceptibility, especially by 1H NMR and EPR spectrascopy. The EPR spectra of the Gd Ni SALEN complex in powder and various solvents were investigated at different temperatures. “Single Peak Effect” was observed in THF solvent at low temperature. The “U” spectral feature, crystal field strength and local symmetry around Gd 3+ were discussed.

关 键 词：镧系 异核配合物 席夫碱 EPR波谱 SALEN 

分 类 号：O625.632[理学—有机化学] O614.33[理学—化学]