Axially aligned confinement of 1,4-bis(triethylammoniomethyl)benzene by two p-sulfonatocalix[4]arenes

Irene Ling, Yatimah Alias, Munirah Sufiyah Abdul Rahim, Brian W. Skelton, Lindsay T. Byrne, Colin L. Raston

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A multiple component bi-layer complex containing 1,4- bis(triethylammoniomethyl)benzene and mono-phosphonium cations, and p-sulfonatocalix[4]arene involves preferential binding of the ammonium cation in the cavities of two geometrically opposed calixarenes with the mono-phosphonium cation embedded within a bilayer of calixarenes. The complex has channels between bilayers ∼14 Å in diameter which are lined with both polar sulfonate groups and the hydrophobic surface of the central part of the ammonium cation. 1H NMR and 1D-ROESY experiments establish the formation of supermolecules of the bis-triethylammonium cation and two calixarenes in solution.

Original languageEnglish
Pages (from-to)755-762
Number of pages8
JournalAustralian Journal of Chemistry
Issue number7
Publication statusPublished - 2012
Externally publishedYes

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