Solvent extraction of univalent cations into nitrobenzene using sodium dicarbollylcobaltate and tetraphenyl p-tert-butylcalix[4]arene tetraketone

被引：0

作者：

Emanuel Makrlík

Jan Budka

Petr Vaňura

Jiří Dybal

机构：

[1] University of West Bohemia,Faculty of Applied Sciences

[2] Institute of Chemical Technology,Institute of Macromolecular Chemistry

[3] Academy of Sciences of the Czech Republic,undefined

来源：

Monatshefte für Chemie - Chemical Monthly | 2008年 / 139卷

关键词：

Calixarenes; Macrocycles; Complexation; Univalent cations; Stability constants.;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

From extraction experiments and γ-activity measurements, the exchange extraction constants corresponding to the equilibrium M+(aq) + 1 · Na+ (nb) ⇄ 1 · M+ (nb) + Na+ (aq) taking place in the two-phase water-nitrobenzene system (M+ = Li+, H3O+, NH4+, Ag+, K+, Rb+, Tl+, Cs+; 1 = tetraphenyl p-tert-butylcalix[4]arene tetraketone; aq = aqueous phase, nb = nitrobenzene phase) were evaluated. Moreover, the stability constants of the 1 · M+ complexes in water saturated nitrobenzene were calculated; they were found to increase in the order Cs+ < Rb+ < Tl+ < K+ < NH4+ < Ag+ < H3O+ < Li+.

引用

页码：1349 / 1351

页数：2

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