Manipulating the conformation and interplay of p-sulfonated calix[4]arenes by lower rim tri-substitution with N′-cyanocarbamimidate groups

Irene Ling, Brian W. Skelton, Alexandre N. Sobolev, Yatimah Alias, Colin L. Raston

Research output: Contribution to journalArticleResearchpeer-review

2 Citations (Scopus)


p-Sulfonatocalix[4]arenes with three of the lower rim hydroxyl groups substituted with N′-cyanocarbamimidate groups crystallizes in the 1,3-alternate conformation rather than the common cone conformation for unsubstituted calixarenes, which also results in departure from the common bilayer arrangement of sulfonated calix[4]arenes. The new calixarene formed via reaction of the phenolic moieties of the p-sulfonatocalix[4]arene with the dicyanamide anion derived from an ionic liquid with an imidazolium cation.

Original languageEnglish
Pages (from-to)5159-5164
Number of pages6
Issue number23
Publication statusPublished - 21 Jun 2014
Externally publishedYes

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