Synthesis and Metal Ion Recognition Properties of a Novel Chiral Calix[4](azoxa)crown-7

A novel chiral calix[4](azoxa)crown-7 (9) has been synthesized and its metal ion recognition properties investigated. The starting reagents, chiral diamine 5 and calix[4]arene diacid chloride derivative 8, were prepared according to literature methods. 1 H and 13 C NMR data show that 9 exists in a c...

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Bibliographic Details
Published in:Supramolecular chemistry 2005-04, Vol.17 (3), p.251-256
Main Authors: Sirit, Abdulkadir, Kocabas, Erdal, Memon, Shahabuddİn, Karakucuk, Aysegul, Yilmaz, Mustafa
Format: Article
Language:English
Subjects:
Azoxacrown ether
Calixarene
Chirality
Solvent extraction
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Summary:A novel chiral calix[4](azoxa)crown-7 (9) has been synthesized and its metal ion recognition properties investigated. The starting reagents, chiral diamine 5 and calix[4]arene diacid chloride derivative 8, were prepared according to literature methods. 1 H and 13 C NMR data show that 9 exists in a cone conformation. In liquid-liquid extraction experiments, 9 exhibits selectivity for Li + among the other alkali metals and a good extraction ability for transition metal cations, suggesting its potential use in different fields, such as a sensor for ions as well as for chiral molecules.
ISSN:1061-0278
1029-0478
DOI:10.1080/10610270412331337321