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化学学报
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化学学报 ›› 1989, Vol. 47 ›› Issue (12): 1197-1200. 上一篇    下一篇

研究论文

高氯酸钇冠醚配合物的研究I:三水高氯酸钇与18-冠-6在乙腈中配合行为的研究

任德厚;贾普孝;薛刚林;薛鸿福;孙聚昌   

  1. 西北大学化学系
  • 发布日期:1989-12-15

Complexes of crown ether with yttrium perchlorate I:studies on coordination behavior between Y(ClO4)3.3H2O and crown ether 18C6 in methyl cyanide

REN DEHOU;JIA PUXIAO;XUE GANGLIN;XUE HONGFU;SUN JUCHANG   

  • Published:1989-12-15

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382

被引次数

2

本文用改进和半微量相平衡方法研究了Y(ClO~4)~3.3H~2O-18C~6-CH~3Cn 三体系在20℃时的溶解度, 以便确定三水高氯酸钇与18-冠-6-在乙腈中能否形成配合物, 能生成几种配合物以及它们的相区情况, 为合成固态配合物提供依据。并在该基础上, 分离,制备了固态配合物, 利用化学分析, DTG,TG,DSC以及电导考查了配合物的组成与性质。

关键词: 相平衡, 反应机理, 热分析, 溶解度, 冠式化合物, 高氯酸, 钇化合物, 电导, 乙腈, 络合反应

The solubilities of the ternary Y(ClO4)3.3H2O-18-crown-6-MeCN system at 20?have been investigated by the modified semimicro method for study of phase equilibrium Two kinds of complexes are formed at 20? namely Y(ClO4)3.18-crown-6.3H2O.2.5MeCN and Y(ClO4)3.2(18-crown-6).3H2O.2MeCN, which were isolated, and dried to give Y(ClO4)8.18-crown-6.3H2O and Y(ClO4)3.2(18-crown-6).3H2O, resp. The composition and properties of the 2 complexes have been investigated by IR spectra, conductivity measurements, DTG, TG and DSC. The enthalpies of dehydration and decompns. have been determine for these two complexes by DSC.

Key words: PHASE EQUILIBRIUM, REACTION MECHANISM, THERMAL ANALYSIS, SOLUBILITY, CROWN ETHER COMPOUNDS, PERCHLORIC ACID, YTTRIUM COMPOUNDS, ELECTRIC CONDUCTANCE, ACETONITRILE, COMPLEX REACTION

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