稀土α-羟基异丁酸配合物的合成与表征  

Synthesis and Characterization of Rare Earth Complex With α-Hydroisobutyric Acid

作　　者：徐诚[1] 倪兆艾[1] 

机构地区：[1]杭州大学化学系

出　　处：《杭州大学学报（自然科学版）》1992年第2期184-187,共4页Journal of Hangzhou University Natural Science Edition

摘　　要：本文合成了十五种稀土α-羟基异丁酸固体配合物.元素分析确证其组成为Ln(HIB),0.5H_2O(Ln=La,Y,Tb—Lu),Ln(HIB)_3·3H_2O(Ln=Ce—Nd),配合物的摩尔电导值证实配合物在水中未完全电离.x-射线粉末衍射分析发现整个系列的稀土配合物在结构上分三类.红外光谱说明已形成了配合物,本文根据对配合物进行了差热,热重及程序升温分解气相色谱分析,提出了稀土α—羟基异丁酸配合物的热分解机理.Eifteen complexes of Ln(HIB)3·nH2O (HIB = (CH3)2C(OH)COO) had synthesized and characterized by elemental analyses, molar conductance, infrared spectroscopy, TG-DTA, gas chromatography and x-ray powder diffraction. The results showed that the complexes were defined into three types: La(HIB)3·0.5H2O, Ln(HIB)3·3H2O (Ln=Ce-Gd), and Ln(HIB)3·0.5H2O (Ln=Y, Tb-Lu). The molar conductivity data indicated that these complexes were not typically ionic compounds in water. The mechanism of thermal decomposition of the complexes was proposed.

关 键 词：稀土 α-羟基异丁酸 配合物 

分 类 号：O614.33[理学—无机化学]