POTASSIUM TRANSFER FACILITATED BY MONOAZA-18-CROWN-6 ACROSS THE WATER-1,2-DICHLOROETHANE INTERFACE

被引:16
|
作者
TAN, SN [1 ]
GIRAULT, HH [1 ]
机构
[1] UNIV EDINBURGH,DEPT CHEM,EDINBURGH EH9 3JJ,MIDLOTHIAN,SCOTLAND
来源
JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1992年 / 332卷 / 1-2期
关键词
D O I
10.1016/0022-0728(92)80343-3
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The facilitated potassium transfer by monoaza-crown-6 (A18C6) across the water-1,2-dichloroethane interface has been investigated by cyclic voltammetry. The pH of the aqueous phase determines the nature of and the type of assisted ion transfer, i.e. proton transfer, assisted metal ion transfer or both. The stability constants of protonated A18C6 and potassium-A18C6 in 1,2-dichloroethane, and potassium-A18C6 in water, have been evaluated from the voltammetric data.
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页码:101 / 112
页数:12
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