A Fluorescent Ditopic Rotaxane Ion-Pair Host

Mathieu Denis, Lei Qin, Peter Turner, Katrina A. Jolliffe*, Stephen M. Goldup

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)

Abstract

We report a rotaxane based on a simple urea motif that binds Cl selectively as a separated ion pair with H+ and reports the anion binding event through a fluorescence switch-on response. The host selectively binds Cl over more basic anions, which deprotonate the framework, and less basic anions, which bind more weakly. The mechanical bond also imparts size selectivity to the ditopic host.

Original languageEnglish
Pages (from-to)5315-5319
Number of pages5
JournalAngewandte Chemie - International Edition
Volume57
Issue number19
DOIs
Publication statusPublished - 4 May 2018

Bibliographical note

Funding Information:
M.D. thanks the University of Southampton and EPSRC (EP/ L505067/1) for financial support. S.M.G. acknowledges funding from the European Research Council (Consolidator Grant Agreement no. 724987). S.M.G. thanks the Royal Society for a Research Fellowship. L.Q. acknowledges financial support from a John A. Lamberton scholarship. The authors gratefully acknowledge support from the Royal Society (International Exchange grant). The authors thank P. Horton and G. Tizzard of the UK National Crystallography Service for assistance with the analysis of 1, 1·HBF4, and 1·HCl.

Publisher Copyright:
© 2018 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA.

Keywords

  • anions
  • fluorescence
  • mechanical bonds
  • rotaxanes
  • sensors

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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