Effect of 1,1,2,2-tetrachloroethane on the ionizing ability of complexes of HCl with DMF

被引:3
作者
Kislina, IS [1 ]
Sysoeva, SG [1 ]
Temkin, ON [1 ]
机构
[1] MV LOMONOSOV MOSCOW STATE ACAD FINE CHEM TECHNOL,MOSCOW 117571,RUSSIA
关键词
acidity; the indicator method; hydrogen chloride; N; N-dimethylformamide; complexes; 1,1,2,2-tetrachloroethane;
D O I
10.1007/BF01433735
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The acidity function (H-0) of solutions of HCl (0-7.1 mol L(-1)) in an equimolar mixture of DMF-1,1,2,2-tetrachloroethane (TCE) has been determined by the indicator method at 25 degrees C. Data on the relative ionizing activity of complexes of KCl with DMF with various compositions and structures have been obtained. In the ternary system HCl-DMF-TCE, the ionizing ability of the complexes of DMF with HCl of the compositions 2 : 1 and 1 : 1 with a quasiionic structure decreases compared to the HCl-DMF system, and that of the complex of the composition DMF . 2HCl with a structure of an ion pair Me(2)NHCOH(+) . (ClHCl)(-) with a strong centrosymmetrical H-bond in the anion increases.
引用
收藏
页码:69 / 73
页数:5
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