LaCl_3·3H_2O与冠醚18C6在丙酮中配合行为的研究  

A Study on Coordination Behaviour of LaCl 3·3H 2O with 18C6 in Acetone System at 25℃ and Synthesis and Characterization of Coordination Compounds

作　　者：刘红科[1,2] 高胜利[1,2] 薛鸿福 温德才 任德厚[1,2] 

机构地区：[1]西北大学化学系 [2]福建龙岩师范专科学校化学系

出　　处：《西北大学学报（自然科学版）》1998年第4期304-308,共5页Journal of Northwest University（Natural Science Edition）

基　　金：陕西省自然科学基金

摘　　要：用半微量相平衡方法研究了ＬａＣｌ３３Ｈ２Ｏ－１８Ｃ６－ＣＨ３ＣＯＣＨ３三元体系在２５℃时的溶解度，并测定了各饱和溶液的折光率。其结果表明，该体系中形成两种化学计量的配合物：２ＬａＣｌ３１８Ｃ６６Ｈ２ＯＣＨ３ＣＯＣＨ３与ＬａＣｌ３１８Ｃ６３Ｈ２Ｏ０．５ＣＨ３ＣＯＣＨ３。制备了固态配合物，用化学分析，ＩＲ，ＴＧ－ＤＴＧ和ＤＳＣ研究了配合物的组成和性质。The solubility of ternery system、LaCl 3·3H 2O 18C6 CH 3COCH 3,has been investigated by a semimicro method at 25℃ for study of phase equilibrium,and the refractive indexes of staurated solutions have been determined.The results indicate that there are two kinds of complexes formed in the system,namely 2 LaCl 3·18C6·6H 2O·CH 3COCH 3 and LaCl 3·18C6·3H 2O·0.5CH 3CHCH 3,.Their compositions have been determined nad properties have been characterized by IR spectra,DTG,TG and DSC.

关 键 词：三水氯化镧 冠醚18C6 相平衡 溶解度 配合物 

分 类 号：O614.331[理学—无机化学] O642.42[理学—化学]