镧系大环希夫碱配合物的研究(英文)

Studies on Lanthanide Complexes with A New Schiff Base Macrocyclic Ligand

在水合镧系硝酸盐 ( )的存在下 ,2 ,2 (-亚乙二氧基 )双苯甲醛与二亚乙基三胺在乙醇介质中形成了配合物 RE(OH) (NO3) 2 L· 2 CH3CH2 OH (RE=La～ Nd) (L是相应的希夫碱大环 ) ,且进行了元素分析、摩尔电导、红外光谱和 TG- DTA分析等性质表征 .结果表明 ,配合物的可能结构式为 [Ln(OH) (NO3) L] NO3·2 CH3CH2 OH,其中镧系离子的配位数为 8.

Reaction of 2,2 (ethylenedioxy)bisbenzaldehyde with diethylenetriamine in ethanol in the presence of hydrated Ln(NO 3) 3 (Ln =Lanthanide ion) gave complexes of the type Ln(OH)(NO 3) 2L·2CH 3CH 2OH (Ln=La～Nd), where L is the corresponding Schiff base macrocyclic ligand. The complexes were characterized by elemental analyses, molar conductances, IR and thermogravimetric measurements. The likely formula for the nitrate complex may be suggested as [Ln(OH)(NO 3)L]NO 3·2CH 3CH 2OH, with the central lanthanide ions attaining august coordination.