Anion-Orchestrated Formation in the Crystalline State of [2]Pseudorotaxane Arrays

Peter R. Ashton, Stuart J. Cantrill, Jon A. Preece, J. Fraser Stoddart*, Zhen He Wang, Andrew J P White, David J. Williams

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


(Matrix Presented) In contrast with dibenzo[24]crown-8 (DB24C8), when tetrabenzo[24]crown-8 (TB24C8) is mixed with dibenzylammonium hexafluorophosphate (DBA·PF6) in noncompetitive solvents, the thermodynamically driven noncovalent synthesis of the threaded 1:1 complex-a [2]pseudorotaxane-does not occur. However, on crystallization from solution-in a process which is presumably kinetically controlled-TB24C8 molecules and DBA+ cations form an array of [2]pseudorotaxanes stabilized by a plethora of [C-H⋯F] hydrogen bonds to highly ordered, interstitially located PF6 - anions.

Original languageEnglish (US)
Pages (from-to)1917-1920
Number of pages4
JournalOrganic Letters
Issue number12
StatePublished - Dec 16 1999

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry

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