Solvent extraction of europium trifluoromethanesulfonate into nitrobenzene in the presence of p-tert-butylcalix[6]arene and p-tert-butylcalix[8]arene

被引：0
作者：
Emanuel Makrlík
P. Vaňura
P. Selucký
机构：
[1] University of West Bohemia,Faculty of Applied Sciences
[2] Institute of Chemical Technology,Department of Analytical Chemistry
[3] Nuclear Research Institute,undefined
来源：
Journal of Radioanalytical and Nuclear Chemistry | 2011年 / 287卷
关键词：
Extraction; Europium trifluoromethanesulfonate; -; -Butylcalix[6]arene; -; -Butylcalix[8]arene; Nitrobenzene; 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 extraction constants corresponding to the general equilibrium Eu3+(aq) + 3A−(aq) + L(nb) ⇔ EuL3+(nb) + 3A−(nb) taking part in the two-phase water–nitrobenzene system (A− = CF3SO3−; L = p-tert-butylcalix[6]arene, p-tert-butylcalix[8]arene; aq = aqueous phase, nb = nitrobenzene phase) were evaluated. Further, the stability constants of the EuL3+ complexes in nitrobenzene saturated with water were calculated for a temperature of 25 °C as log βnb(EuL3+) = 6.4 ± 0.1 (L = p-tert-butylcalix[6]arene) and log βnb(EuL3+) = 11.3 ± 0.1 (L = p-tert-butylcalix[8]arene).
引用
收藏
页码：277 / 280
页数：3
相关论文
共 154 条
[1]  
Böhmer V(1995)undefined Angew Chem Int Ed Engl 34 713-undefined
[2]  
Ungaro R(1994)undefined Angew Chem Int Ed Engl 33 1506-undefined
[3]  
Casnati A(2001)undefined J Am Chem Soc 123 12182-undefined
[4]  
Ugozzoli F(1998)undefined Chem Rev 98 2495-undefined
[5]  
Pochini A(2007)undefined Z Phys Chem 221 881-undefined
[6]  
Dozol JF(1986)undefined Tetrahedron 42 2089-undefined
[7]  
Hill C(1988)undefined J Incl Phenom Macrocycl Chem 6 119-undefined
[8]  
Rouquette H(1989)undefined J Am Chem Soc 111 8681-undefined
[9]  
Casnati A(1993)undefined Inorg Chem 32 2644-undefined
[10]  
Barboso S(1997)undefined Anal Chim Acta 341 275-undefined
12345678910