Triple-ion interactions for the construction of supramolecular capsules

Research output: Contribution to journalArticleAcademicpeer-review

63 Citations (Scopus)

Abstract

A novel type of [2+4] capsules based on triple-ion interactions was obtained. Four monovalent anions (bromide, nitrate, acetate, and tosylate) bring together two tetrakis(pyridiniummethyl)tetramethyl cavitands by pyridinium−anion−pyridinium interactions. ESI-MS experiments have confirmed the capsule structure due to different fragmentation pathways of triple ions, cations, and ion-pairs. Each capsule encapsulates one or two anions, depending on its size. The capsules exist in equilibrium with hemicapsules containing three walls. The latter form complexes with phenols and anilines to give new unsymmetrical capsules containing both pyridinium−anion−pyridinium and pyridinium−guest−pyridinium walls.
Original languageUndefined
Pages (from-to)5270-5278
Number of pages9
JournalJournal of the American Chemical Society
Volume128
Issue number15
DOIs
Publication statusPublished - 2006

Keywords

  • METIS-232160
  • IR-74140

Cite this