Solid state NMR spectroscopy of calix[4]arene-based carceplexes

André M.A. van Wageningen, Willem Verboom, Xu Zhu, John A. Ripmeester, David N. Reinhoudt

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Abstract

13C CP/MAS spectroscopy of calix[4]arene-based carceplexes shows that in the solid state the cavity walls of the carcerand are rigid, whereas the pendant groups of the resorcin[4]arene as well as the ends of the propyl goups of the calix[4]arene moiety exhibit some flexibility. Temperature dependent 2H measurements of the DMSO-d6 carceplex reveal that two different sites are present for the DMSO guest with an energy difference of 1.7 kcal mol-1.
Original languageEnglish
Pages (from-to)31-36
JournalSupramolecular chemistry
Volume9
Issue number1
DOIs
Publication statusPublished - 1998

Keywords

  • 2H NMR spectroscopy
  • 13C CP/MAS spectroscopy
  • Caraplex
  • Calix[4]arene

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