期刊
CHINESE JOURNAL OF CHEMISTRY
卷 24, 期 5, 页码 674-680出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cjoc.200690129
关键词
calix[4]arene; selenide; NMR titration; ion extraction
Novel macrocyclic monooxa-diselkylene-1,omega-dioxy substituted calix[4]arene derivatives 1a-5a were synthesized by the reaction of calix[4]arene dibromides 1-5 with the disodium salt of bis(2-selenylethyl)ether in the yields between 28% and 64%. Their structures were characterized by proton and carbon NMR spectra. X-Ray structure analysis of 1a further confirmed the cone conformation of compounds 1a-5a. An interesting host-guest complex of 1a with dichloromethane via CH/pi and Cl/pi interactions was elucidated. Extraction experiments showed that these novel monooxa-diselkylene-1,omega-dioxy substituted calix[4]arene derivatives 1a-5a had strong extraction ability towards mercury ion. The interaction of Hg2+ with the calix ligand has also been investigated by H-1 NMR titration.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据