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Issue 12, 2015
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AuICl-bound N-heterocyclic carbene ligands form M II4(LAuCl)6 integrally gilded cages

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Abstract

The incorporation of an N-heterocyclic carbene (NHC) moiety into a self-assembled MII4L6 cage framework required the NHC first to be metallated with gold(I). Bimetallic cages could then be constructed using zinc(II) and cadmium(II) templates, showing weak luminescence. The cages were destroyed by the addition of further gold(I) in the form of AuI(2,4,6-trimethoxybenzonitrile)2SbF6, which caused the reversibly-formed cages to disassemble and controllably release the AuI-NHC subcomponent into solution. This release in turn induced the growth of gold nanoparticles. The rate of dianiline release could be tuned by capsule design or through the addition of chemical stimuli, with different release profiles giving rise to different nanoparticle morphologies.

Graphical abstract: AuICl-bound N-heterocyclic carbene ligands form MII4(LAuCl)6 integrally gilded cages

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Supplementary files

Article information


Submitted
18 Aug 2015
Accepted
23 Sep 2015
First published
24 Sep 2015

This article is Open Access
All publication charges for this article have been paid for by the Royal Society of Chemistry

Chem. Sci., 2015,6, 7326-7331
Article type
Edge Article
Author version available

AuICl-bound N-heterocyclic carbene ligands form MII4(LAuCl)6 integrally gilded cages

W. J. Ramsay, J. A. Foster, K. L. Moore, T. K. Ronson, R. J. Mirgalet, D. A. Jefferson and J. R. Nitschke, Chem. Sci., 2015, 6, 7326
DOI: 10.1039/C5SC03065J

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