摘要
以 2 -氨基噻唑为原料 ,经重氮化 -偶联反应合成了 5 ,1 1 ,1 7,2 3-四 ( 2 -噻唑 )偶氮基 -2 5 ,2 6,2 7,2 8-四羟基杯 [4 ]芳烃和 5 ,1 1 ,1 7,2 3,2 9,35 -六 ( 2 -噻唑 )偶氮基 -37,38,39,4 0 ,4 1 ,4 2 -六羟基杯 [6]芳烃 ,产物的结构经IR,1 H NMR和元素分析表征 ;研究了它们的光谱性能和对金属离子的识别状况 ,发现在 p H=7.2的 Tris介质中对 Ag+ 和 Hg2 +
The synthesis of 5,11,17,23 tetrakis(2 thiazole)azo 25,26,27,28 tetrahydroxy calixarene(Ⅰ) and 5,11,17,23,29,35 hexa(2 thiazole)azo 37,38,39,40,41,42 hexahydroxy calixarene(Ⅱ) was described. The structures were confirmed by IR, 1H NMR and elemental analysis. It was found that the synthesized derivatives have a good solubility in basic aqueous medium and posses molecular binding properties. It was showed that the derivatives exhibit a high selectivity for Ag +, Hg 2+ and other ions compared with Na +, K + and NH + 4, which is because metal ions such as Ag + and Hg 2+ display a great affinity for soft coordination center of nitrogen and sulfur atoms.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2002年第2期191-194,共4页
Chemical Journal of Chinese Universities
基金
国家自然科学基金 (批准号 :2 9975 0 14 )
湖北省教育厅科研基金 (批准号 :99B0 0 8)资助
