Synthesis, Structure and Ion Extraction Properties of Novel Monooxa-diselkylene-1,ω-dioxy Substituted Calix[4]arene Derivatives  

作　　者：秦大斌 曾宪顺 徐凤波 李庆山 张正之 

机构地区：[1]State Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China [2]School of Chemistry and Chemical Industry, China East Normal University, Nanchong, Sichuan 637000, China

出　　处：《Chinese Journal of Chemistry》2006年第5期674-680,共7页中国化学（英文版）

基　　金：Project supported by the National Natural Science Foundation of China （No. 20472036）.

摘　　要：Novel macrocyclic monooxa-diselkylene-1,ω-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 la further confirmed the cone conformation of compounds 1a-5a. An interesting host-guest complex of la with dichloromethane via CH/π and C1/π interactions was elucidated. Extraction experiments showed that these novel monooxa-diselkylene-1,ω-dioxy substituted calix[4]arene derivatives 1a-5a had strong extraction ability towards mercury ion. The interaction of Hg^2＋with the calix ligand has also been investigated by 1^H NMR titration.Novel macrocyclic monooxa-diselkylene-1,ω-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 la further confirmed the cone conformation of compounds 1a-5a. An interesting host-guest complex of la with dichloromethane via CH/π and C1/π interactions was elucidated. Extraction experiments showed that these novel monooxa-diselkylene-1,ω-dioxy substituted calix[4]arene derivatives 1a-5a had strong extraction ability towards mercury ion. The interaction of Hg^2＋with the calix ligand has also been investigated by 1^H NMR titration.

关 键 词：CALIX[4]ARENE SELENIDE NMR titration ion extraction 

分 类 号：O625.1[理学—有机化学]