Calix[4]pyrroles: C-rim substitution and tunability of anion binding strength

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Philip A. Gale, Jonathan L. Sessler, William E. Allen, Nicolai A. Tvermoes and Vincent Lynch


Abstract

Electron-rich and electron-deficient C-rim substituted calix[4]pyrroles 1–4 are synthesised and the anion binding ability of these receptors is found to be dependent upon the C-rim substituents.


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