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Issue 11, 2017
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All-metal aromatic cationic palladium triangles can mimic aromatic donor ligands with Lewis acidic cations

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Abstract

We present that cationic rings can act as donor ligands thanks to suitably delocalized metal–metal bonds. This could grant parent complexes with the peculiar properties of aromatic rings that are crafted with main group elements. We assembled Pd nuclei into equilateral mono-cationic triangles with unhindered faces. Like their main group element counterparts and despite their positive charge, these noble-metal rings form stable bonding interactions with other cations, such as positively charged silver atoms, to deliver the corresponding tetranuclear dicationic complexes. Through a mix of modeling and experimental techniques we propose that this bonding mode is an original coordination-like one rather than a 4-centre–2-electron bond, which have already been observed in three dimensional aromatics. The present results thus pave the way for the use of suitable metal rings as ligands.

Graphical abstract: All-metal aromatic cationic palladium triangles can mimic aromatic donor ligands with Lewis acidic cations

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Publication details

The article was received on 09 Aug 2017, accepted on 28 Aug 2017 and first published on 29 Aug 2017


Article type: Edge Article
DOI: 10.1039/C7SC03475J
Citation: Chem. Sci., 2017,8, 7394-7402
  • Open access: Creative Commons BY license
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    All-metal aromatic cationic palladium triangles can mimic aromatic donor ligands with Lewis acidic cations

    Y. Wang, A. Monfredini, P. Deyris, F. Blanchard, E. Derat, G. Maestri and M. Malacria, Chem. Sci., 2017, 8, 7394
    DOI: 10.1039/C7SC03475J

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