Communication

An Unlockable–Relockable Iron Cage by Subcomponent Self-Assembly†

  1. Prasenjit Mal Dr.2,‡,
  2. David Schultz Dr.3,‡,
  3. Kodiah Beyeh1,
  4. Kari Rissanen Prof. Dr.1,
  5. Jonathan R. Nitschke Dr.2

Article first published online: 26 AUG 2008

DOI: 10.1002/anie.200803066

Issue

Angewandte Chemie International Edition

Angewandte Chemie International Edition

Volume 47, Issue 43, pages 8297–8301, October 13, 2008

Additional Information

How to Cite

Mal, P., Schultz, D., Beyeh, K., Rissanen, K. and Nitschke, J. (2008), An Unlockable–Relockable Iron Cage by Subcomponent Self-Assembly. Angewandte Chemie International Edition, 47: 8297–8301. doi: 10.1002/anie.200803066

Author Information

  1. 1

    Nanoscience Center, Department of Chemistry, University of Jyväskylä, P.O. Box 35, 40014 JYU (Finland)

  2. 2

    University of Cambridge, Department of Chemistry, Lensfield Road, Cambridge CB2 1EW (UK) http://www-jrn.ch.cam.ac.uk/

  3. 3

    University of Edinburgh, School of Chemistry, The King's Buildings, West Mains Road, Edinburgh EH9 3JJ (UK)

  1. ‡

    These authors contributed equally to this work.

  1. †

    This work was supported by the Walters–Kundert Charitable Trust, the Royal Society, the Swiss National Science Foundation, and the Academy of Finland (122350), the Graduate School of Organic Chemistry and Chemical Biology (K.B.) and the Marie Curie IIF Scheme of the 7th EU Framework Program (P.M.).

Publication History

  1. Issue published online: 9 OCT 2008
  2. Article first published online: 26 AUG 2008
  3. Manuscript Received: 25 JUN 2008

Funded by

  • Walters–Kundert Charitable Trust
  • Royal Society
  • Swiss National Science Foundation
  • Academy of Finland. Grant Number: 122350
  • Graduate School of Organic Chemistry and Chemical Biology
  • EU

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Keywords:

  • coordination chemistry;
  • dynamic covalent chemistry;
  • host–guest systems;
  • iron;
  • self-assembly

Graphical Abstract

Thumbnail image of graphical abstract

In irons bound: Linear diamine and formylpyridine subcomponents form a tetrahedral cage with iron(II) in water (see scheme). This cage traps hydrophobic guests with high specificity within a rigid cavity, isolating them from the aqueous environment. The cage may be broken, releasing the guest, upon the addition of a triamine. It may also be unlocked by adding acid, allowing the guest to be reversibly released until base is added, relocking it within.

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