中华医学超声杂志

应用化学 ›› 1991, Vol. 0 ›› Issue (5): 92-95.

• 研究简报 • 上一篇    下一篇

Dy(ClO4)3·3H2O-18C6-CH3CN体系的相平衡及其固体配合物的合成

任德厚, 畅柱国, 郭秀云, 陈建成   

  1. 西北大学化学系, 西安 710069
  • 收稿日期:1990-06-26 修回日期:1990-11-27 出版日期:1991-10-10 发布日期:1991-10-10

PHASE EQUILIBRIUM OF Dy(ClO4)3·3H2O-18C-6CH3CN SYSTEM AND SYNTHESIS OF RELATED COORDINATION COMPOUNDE

Ren Dehou, Chang Zhuguo, Guo Xiuyun, Cheng Jiancheng   

  1. Department of Chemistry, Morthwest University, Xian 710069
  • Received:1990-06-26 Revised:1990-11-27 Published:1991-10-10 Online:1991-10-10

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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[1-3]。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[4]研究了Dy(ClO4)3·3H2O-18C6-CH3CN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。

关键词: 配合物, 冠醚18C6, 三水高氯酸镝, 乙腈, 相图

Abstract: The solubility of the ternary system, Dy(ClO4)3.3H2O-18C6-CH3CN, at 15℃ has beeninvestigated using a somimicro phase eqilibrium mothod.Two kinds3of coordination compo-und were formod in the system: Dy(ClO4)3·18C6·3H2O·2.5CH3CN and Dy(ClO4)3·2 (18C6).3H2O·2CH3CN.Examination of the role played by water in this systom during equilibriumshowed that the mole ratio of H2O to Dy(ClO4)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(ClO4)3·18C6·3H2O, Dy(ClO4)3·2(18C6·3H2O) Dy(ClO4)3·18C6 and Dy(ClO4)3·2(18C6).

Key words: coordination compound, crown ether 18C6, dysprosium perchlorate, methyl cyanide, phase diaram

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