Calix[4]arene-based ditopic receptors for simultaneous recognition of fluoride and cobalt(II) ions

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• 作者：Har Mohindra Chawla ; ^{hmchawla@chemistry.iitd.ac.in} ; ^{hmchawla@chemistry.iitd.ernet.in} ; Satya Narayan Sahu ; Rahul Shrivastava ; Satish Kumar
• 关键词：Calix[4]arene ; Cobalt(II) ion ; Ditopic receptor ; Fluoride ion ; Bipyridyl receptors
• 刊名：Tetrahedron Letters
• 出版年：2012
• 期刊代码：109_00404039
• 类别：ch
• 出版时间：25 April, 2012
• 卷：53
• 期：17
• 页码：2244-2247
• 文件大小：562 K

摘要

A series of calix[4]arene based ditopic receptors possessing bipyridyl and hydrazone units have been synthesized and evaluated for ionic recognition. It has been observed that the synthesized derivatives function as allosteric receptors for simultaneous recognition of Co²⁺and F^{鈭?/sup> ions through non-covalent interactions. Significant bathochromic shifts in the UV-visible spectrum with a profound colour change promise their use to engineer novel applications.}