Lanthanide-Containing [2]Rotaxanes

  • Author: Veronika Belusa
  • Published Date: 08 July 2014
  • Source / Publisher: Angewandte Chemie International Edition/Wiley-VCH
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA
thumbnail image: Lanthanide-Containing [2]Rotaxanes

Interlocked molecular architectures, such as rotaxanes and catenanes, are of great interest because of their proposed utilization in molecular machines and nanotechnological applications. Despite the usefulness of emissive lanthanide complexes in imaging, sensing, and assay, the integration of lanthanide reporter groups within the binding cavity of interlocked hosts has not been achieved.

Stephen Faulkner, Paul D. Beer, and colleagues, University of Oxford, UK, describe the first anion-templated synthesis of a lanthanide-containing interlocked molecule, by the unprecedented use of a nitrite anion template. The bidentate coordination behaviour of a nitrite anion is used to template the formation of a pseudorotaxane assembly, by simultaneous coordination to a lanthanide cation incorporated within a macrocycle and a hydrogen-bond donor threading component.

The [2]rotaxane host system, isolated in high yields, is capable of sensing fluoride anions selectively by means of the luminescent europium center integrated within the rotaxanes macrocycle component.

Article Views: 3377

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

If you would like to reuse any content, in print or online, from, please contact us first for permission and consult our permission guidance prior to making your request

Follow on Facebook Follow on Twitter Follow on YouTube Follow on LinkedIn Follow on Instagram RSS Sign up for newsletters

Magazine of Chemistry Europe (16 European Chemical Societies) published by Wiley-VCH