A supramolecular assembly controlled by anions: threading and unthreading of a pseudorotaxane
- 1 January 1998
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Chemical Communications
- No. 14,p. 1461-1462
- https://doi.org/10.1039/a802157k
Abstract
The pseudorotaxane formed in CH2Cl2 solution by (9-anthrylmethyl)methylammonium hexafluorophosphate salt and dibenzo-24-crown-8 can be unthreaded by addition of NBu4Cl through the formation of a strong ammonium chloride ion pair, while pseudorotaxane rethreading can be performed by addition of NHBu3PF6; all these processes can be followed by pronounced changes in the luminescence spectra, which could allow the use of this system as a fluorescent sensor for chloride ions.Keywords
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