双吲哚基修饰杯[4]芳烃对Hg^2＋的比色传感行为  

Colorimetric Chemosensing of Calix[4] arene Derivative Possessing Bis(indolyl) Groups for Hg^(2+)

作　　者：李喆[1] 郭东升[1] 李红霞[1] 刘育[1] 

机构地区：[1]南开大学化学系,元素有机化学国家重点实验室,天津300071

出　　处：《高等学校化学学报》2008年第12期2545-2548,共4页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:20421202,20673061,20703025)资助

摘　　要：合成了上缘含双吲哚基团的杯[4]芳烃衍生物5,17-双吲哚甲基-25,27-二丙氧基-26,28-二羟基杯[4]芳烃(2),通过UV-Vis光谱研究了它对各种金属离子的化学传感行为.结果表明,主体2对Hg2+具有良好的选择性,向主体2的溶液中加入Hg2+离子,其吸收光谱在500nm左右出现了一个新的吸收峰,同时溶液颜色也由无色变为橙色.因此,化合物2有望作为一种新型的化学传感器用于检测Hg2+.A calix[4]arene derivative（2）possessing bis（indolyl）groups was synthesized in satisfied yield,and further its response to metal ions was investigated by the means of UV-Vis spectrometry.The results obtained show that host 2 displays a high sensitivity to Hg2＋.The addition of Hg2＋ made the absorption spectrum of host 2 appear a new band around ca.500 nm,and caused obvious color change of solution from colorless to orange-yellow.Hence,the detection of Hg2＋ can be easily found by naked eyes.Calixarene 2 may be used for the application as Hg2＋-selective chemosensor,even in aqueous solution.

关 键 词：杯芳烃 HG^2+ 化学传感 双吲哚 

分 类 号：O626[理学—有机化学]