高等学校化学学报 ›› 1994, Vol. 15 ›› Issue (8): 1114.

• 论文 • 上一篇    下一篇

Zn(ClO4)2-DAPTU(MAPTU)-H2O三元体系30℃时的相平衡研究

王志银, 唐宗薰, 陈开勋, 郭志箴   

  1. 西安西北大学化学系, 西安西北大学化工系, 西安, 710069
  • 收稿日期:1993-11-17 修回日期:1994-03-10 出版日期:1994-08-24 发布日期:1994-08-24
  • 通讯作者: 唐宗薰.
  • 作者简介:王志银,男,28岁,硕士研究生.
  • 基金资助:

    国家自然科学基金

Studies on Phase Equilibrium of ternary System Zn(ClO4)2-DAPTU(MAPTU)-H2O at 30℃

WANG Zhi-Yin, TANG Zong-Xun, CHEN Kai-Xun, GUO Zhi-Zhen   

  1. Department of Chemistry, Northwest University, Xi′an, 710069
  • Received:1993-11-17 Revised:1994-03-10 Online:1994-08-24 Published:1994-08-24

摘要: 测定了三元体系Zn(ClO4)2-L-H2O(L=DAPTU,N,N′-二安替比林硫脲;L=MAPTU,N-甲基-N′-安替比林硫脲)在30℃时的溶解度和饱和溶液的折光率,绘制了相应的溶度图和折光率-组成图。体系的溶度曲线和折光率曲线均由3支组成,分别与L(L=DAPTU,MAPTU)、Zn(ClO4)2·L2·nH2O(L=APTU.n=2;L=MAPTU,n=0)和Zn(ClO4)2·6H2O相对应。从溶度图上发现两个未见报道的固液异组成溶解的化合物,经化学分析、元素分析、TG-DTA、IR表征,结果表明,三元化合物Zn(DAPTU)2(ClO4)2·2H2O中DAPTU是以两个羧基氧与Zn2+离子配位,而在二元化合物Zn(MAPTU)2(ClO4)2中MAPTU则以氧和硫原子与Zn(2+)离子配位。

关键词: 三元体系, 溶解度, N, N&prime, -二安替比林硫脲, N-甲基-N&prime, -安替比林硫脲, 高氯酸锌

Abstract: The solubilities and the refractive indexes of saturated solutions of the title system at 30℃ were studied and the corresponding solubility diagrams and refractive index diagrams were constructed. All the solubility curves and refractive index curves of the two systems consist of three branches, corresponding to DAPTU(N, N′-diantipyrylthiourea)or MAPTU (N-methyl-N'-antipyrylthourea), ZnL2(ClO4)2·nH2O(L=DAPTU, n=2;L=MAPTU, n=0) and Zn(ClO4)2·6H2O, respectively. The ternary compounds and binary compound formed in the title systems are new compounds reported for the first time in this paper.They are incongruously soluble in water. They were characterized by chemical analysis and elemental analysis, IRspectra and TG-DTG.In the Zn(DAPTU)2(ClO4)2·2H2O, DAPTUacts as a neutral bidentate ligand coordinating through carbonyl O, and in the Zn(MAPTU)2(ClO4)2, MAPTUacts as a neutral bidentate ligand coordinating through O, S.The perchlorate ion is not coordinated to the Zn2+.The probable coordination number of Zn2+ is 4.

Key words: Ternary system, Solubility, N,N′-diantipyrylthiourea, N-methyl-N′-an-tipyrylthiourea, Perchlorate zinc

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