CHROMOGENIC LITHIUM CRYPTAHEMISPHERAPLEXES FOR DETERMINATION OF SODIUM IN AQUEOUS-SOLUTIONS

被引：12
|
作者：
CZECH, BP
CHAPOTEAU, E
CHIMENTI, MZ
ZAZULAK, W
GEBAUER, CR
KUMAR, A
机构：
[1] Miles Inc., Tarrytown, NY 10591
来源：
ANALYTICA CHIMICA ACTA | 1992年 / 263卷 / 1-2期
关键词：
CRYPTAHEMISPHERAPLEXES; LITHIUM COMPLEXES; SODIUM;
D O I：
10.1016/0003-2670(92)85439-D
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Three new lithium cryptahemispheraplexes for selective complexation of sodium in aqueous solutions were synthesized. Combining diaza-12-crown-4 or diaza-14-crown-4 with the rigid trianisyl concave produced hosts with two different cavity sizes. These compounds, having the [1.1] cavity, incorporate 2,4-dinitro-6-(trifluoromethyl)anilino (2 and 5) and 2,6-dinitro-4-(trifluoromethyl)anilino (4) chromophoric groups for generating a chromogenic and kinetic response to sodium ion. For comparison, the end product of sodium complexation with compound 2 (cryptahemispheraplex 3) was isolated and characterized.
引用
收藏
页码：159 / 167
页数：9
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