A Fluorescent Ditopic Rotaxane Ion-Pair Host

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

doi:10.1002/anie.201713105

A Fluorescent Ditopic Rotaxane Ion-Pair Host

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

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-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 language	English
Pages (from-to)	5315-5319
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	57
Issue number	19
DOIs	https://doi.org/10.1002/anie.201713105
Publication status	Published - 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
General Chemistry

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10.1002/anie.201713105

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A Fluorescent Ditopic Rotaxane Ion-Pair Host

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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