Lower rim 2-methylthioethoxy substituted calix[4]arenes as shape selective complexants for mercury and silver

被引：12

作者：

Yordanov, AT ^{[1
]}

Whittlesey, BR ^{[1
]}

Roundhill, DM ^{[1
]}

机构：

[1] Texas Tech Univ, Dept Chem & Biochem, Lubbock, TX 79409 USA

来源：

SUPRAMOLECULAR CHEMISTRY | 1998年 / 9卷 / 01期

关键词：

calix[4]arene; mercury; silver;

D O I：

10.1080/10610279808034961

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The compounds 5, 11, 17, 23-tert-butyl-25, 26, 27, 28-(2-methylthioethoxy)calix[4] arene 1 and 25, 26, 27, 28-(2-m ethylthioethoxy)cal ix[4] arene 2 have been synthesized from their corresponding 2-bromoethoxy derivatives. The crystal structure of 2 shows that the molecule has a flattened cone conformation. For the extraction of heavy metals from water into chloroform 1 and 2 show similar effectiveness for SnCl3-, PdCI42-, PtCI42- and AuCl4-, but for Hg2+ and Ag+, 2 is a better extractant than 1. This difference is discussed in terms of the relative hydrophobicities and structures of the two compounds.

引用

页码：13 / 15

页数：3

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