1′-丁基二茂铁β-二酮稀土配合物的合成与性质  

Synthesis and Property of Rare Earth Complexes of 1′-Butylferrocenyl-β-diketone

作　　者：吴海霞[1] 边占喜[1] 李树臣[1] 任杰[2] 

机构地区：[1]内蒙古大学化学化工学院 [2]北京航空航天大学材料学院,北京100083

出　　处：《稀土》2006年第6期19-23,共5页Chinese Rare Earths

基　　金：内蒙古大学"513人才计划"资助项目

摘　　要：用1′-丁基二茂铁基甲酰丙酮为配体与三价稀土氯化物反应合成了十四种配合物,并对所有配合物进行了元素分析、红外光谱、核磁共振氢谱、热分析表征。分析结果表明配合物的组成为:(C4H9C5H4F eC5H4COCHCOCH3)3.Ln.xH2O(Ln=L a,Lu,x=3;Ln=C e,Ho,E r,Y b,x=1/2;Ln=P r,N d,Sm,Eu,G d,T b,D y,Tm,x=1)。运用DTA-TG法核实了配合物中水分子的个数。IR表明1′-丁基二茂铁基甲酰丙酮通过两个氧原子与稀土金属配位,生成稳定的六元螯合环结构。核磁数据表明受羰基和羟基去屏蔽作用影响的基团,在形成配合物后,化学位移均向低场稍有移动,进一步证实了配体的配位方式。Rare earth complexes of 1′ - butylferrocenyl - β- diketone （C4H9C5H4FeC5H4COCHCOCH3）3·Ln·xH2O（Ln=La,Lu,X=3;Ln=Ce,Ho,Er,Yb,x=1/2;Ln=Pr,Nd,Sm,Eu,Gd,Tb,Dy,Tm,x=1） have been synthesized and characterized by elemental analysis, IR spectra, ^1HNMR spectra and DTA-TG analysis. DTA -TG indicates that the weight-loss is identical with the theoretical amount. IR shows the ligand is bidentate,coordinating through two oxygen atoms ,and the construction of the complexes is six membered chelate ring. The ^1HNMR spectra of the complexes that Ln = La,Ce, Pr, Nd, Sm,Eu, Tb, Yb have been studied. The results show,comparing with the ligand, the chemical shifts of some groups that are affected by the deshielding effect of the carbonyl and hydroxyl are a certain shift to lower field. This further indicates the coordinate way of the ligand.

关 键 词：二茂铁 Β-二酮 稀土 配合物 

分 类 号：O614.33[理学—无机化学]