Inclusion complexes of imidazolium carboxylate-metal species in the water-soluble sulfonated calix[4]arene system

Irene Ling, Alexandre N. Sobolev, Scott J. Dalgarno

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    Two multi-component crystal structures comprising a carboxylic acid-functionalized imidazolium zwitterion, a p-sulfonatocalix[4]arene anion and aquated metal ion (Na+ or Y3+) with or without an auxiliary component (the 3-methoxyphenyl-triphenylphosphonium cation) are reported. The carboxylic acid-functionalized imidazolium ion binds either as a monodentate or a bidentate ligand depending on the nature of the metal ions, and a bi-layer arrangement prevails in the extended structure regardless of the type of metal ion employed or presence/lack of auxiliary component.

    Original languageEnglish
    Pages (from-to)51-60
    Number of pages10
    JournalJournal of Coordination Chemistry
    Issue number1-3
    Publication statusPublished - 26 Dec 2020


    • Calixarenes
    • coordination chemistry
    • encapsulation
    • host-guest chemistry
    • self-assembly

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