摘要
近年来稀土冠醚配合物的研究受到广泛重视,但稀土高氯酸盐冠醚配合物的研究报道较少。高氯酸镝与冠醚18C6的配合物尚未见报道。我们利用半微量相平衡方法研究了Dy(ClO_4)_3·3H_2O-18C6-CH_3CN三元体系在15℃时的溶解度。同时制得了固态配合物,用化学分析及物理化学方法研究了配合物的组成和性质。
The solubility of the ternary system, Dy(ClO_4)_3 .3H2O-18C6-CH_3CN, at 15℃ has beeninvestigated using a somimicro phase eqilibrium mothod. Two kinds3of coordination compo-und were formod in the system: Dy(ClO_4)_3·18C6·3H_2O·2. 5CH_3CN and Dy(ClO_4)_3·2 (18C6).3H_2O·2CH_3CN. Examination of the role played by water in this systom during equilibriumshowed that the mole ratio of H_2O to Dy(ClO_4)_3 always equals to 3: 1, no matter it isin liquid or solid phase. coordination compounds with the following compositions determi-ned by IR, TC, DTG, DSC, conductance measurements and chemical analyses were obtai-ned: Dy(ClO_4)_3·18C6·3H_2O, Dy(ClO_4)_3·2(18C6·3H2O) Dy(ClO_4)_3·18C6 and Dy(ClO_4)_3·2(18C6).
出处
《应用化学》
CAS
CSCD
北大核心
1991年第5期92-95,共4页
Chinese Journal of Applied Chemistry
关键词
镝配合物
冠醚18C6
乙腈
相图
coordination compound
crown ether 18C6
dysprosium perchlorate
methyl cyanide
phase diaram
