Nitrite-templated synthesis of lanthanide-containing [2]rotaxanes for anion sensing

Matthew J Langton; Octavia A Blackburn; Thomas Lang; Stephen Faulkner; Paul D Beer

doi:10.1002/anie.201405131

Nitrite-templated synthesis of lanthanide-containing [2]rotaxanes for anion sensing

Angew Chem Int Ed Engl. 2014 Oct 20;53(43):11463-6. doi: 10.1002/anie.201405131. Epub 2014 Jul 2.

Authors

Matthew J Langton¹, Octavia A Blackburn, Thomas Lang, Stephen Faulkner, Paul D Beer

Affiliation

¹ Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford, OX1 3TA (UK).

Abstract

The first anion-templated synthesis of a lanthanide-containing interlocked molecule is demonstrated by utilizing a nitrite anion to template initial pseudorotaxane formation. Subsequent stoppering of the interpenetrated assembly allows for the preparation of a lanthanide-functionalized [2]rotaxane in high yield. Following removal of the nitrite anion template, the europium [2]rotaxane host is demonstrated to recognize and sense fluoride selectively.

Keywords: anion; lanthanide; rotaxane; supramolecular chemistry; template synthesis.

© 2014 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.