Preferential recognition of zinc ions through a new anthraquinonoidal calix[4]arene

详细信息	查看全文 | 推荐本文 |

• 作者：Har Mohindra Chawla ; ^{hmchawla@chemistry.iitd.ernet.in} ; ^{hmchawla@chemistry.iitd.ac.in} ; Richa Shukla ; Shubha Pandey
• 关键词：Calix[4]arene ; Anthraquinonoidal ; Preferential recognition ; Zinc ions
• 刊名：Tetrahedron Letters
• 出版年：2012
• 期刊代码：109_00404039
• 类别：ch
• 出版时间：13 June, 2012
• 卷：53
• 期：24
• 页码：2996-2999
• 文件大小：504 K

摘要

A novel anthraquinonoidal calix[4]arene derivative was designed and synthesized for the preferential recognition of biologically important zinc in preference to prominently similar cadmium ions and other metal ions via quenching of fluorescence intensity. The stoichiometry of host guest complexation has been determined to be 1:1. The fluorescence changes associated with the recognition event may be attributed to the interaction of zinc ions with the nitrogenous functionality attached at the lower rim of calix[4]arene cavity which allows spatial disposition of the anthraquinonoid segments.