Novel calix[4]arene-thiacrown ether for selective and efficient extraction of Ba(II), Pb(II), and Hg(II)

被引：22
作者：
Tu, Chuqiao [1 ]
Surowicc, Kazimierz [1 ]
Bartsch, Richard A. [1 ]
机构：
[1] Texas Tech Univ, Dept Chem & Biochem, Lubbock, TX 79409 USA
来源：
JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY | 2007年 / 58卷 / 3-4期
关键词：
calixarenes; crown compounds; molecular recognition; metal ion extraction;
D O I：
10.1007/s10847-006-9283-y
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A di-ionizable p-tert-butylcalix[4]arene-1,3-thiacrown-5 ether extractant was synthesized. Its cone conformation and polyether ring attachment regioselectivity were verified by NMR spectroscopy. The metal ion-complexing properties of this ligand were evaluated by solvent extractions of metal cations from aqueous solutions into chloroform. The ligand was found to be an efficient extractant with Ba2+ selectivity in competitive solvent extraction of alkaline earth metal cations. It also exhibits high extraction ability for Pb2+ and for Hg2+ in single species solvent extractions.
引用
收藏
页码：361 / 366
页数：6
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