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Issue 1, 2014
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Intramolecular C–C agostic complexes: C–C sigma interactions by another name

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Abstract

In this comprehensive review the developments in the synthesis, characterization and reactivity of complexes (s-, d- and f-block) in which a C–C single bond interacts with a metal centre are discussed: so called C–C⋯M agostic complexes. Such species are of significant interest with regard to structure and bonding, the activation of C–C single bonds and, thus, catalytic methods of C–C bond formation (or activation). Examples of C–C agostic complexes of early and later transition metals, actinides and group 1 metals are discussed, along with C–C agostic interactions in metallacyclobutanes. Examples of Si–Si⋯M, B–C⋯M and B–B⋯M agostic interactions are also presented. Throughout, the structural, spectroscopic and computational markers that indicate the likely presence of a C–C⋯M agostic interaction in a complex are highlighted.

Graphical abstract: Intramolecular C–C agostic complexes: C–C sigma interactions by another name

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Article information


Submitted
05 Aug 2013
First published
10 Sep 2013

Chem. Soc. Rev., 2014,43, 242-259
Article type
Review Article

Intramolecular C–C agostic complexes: C–C sigma interactions by another name

M. Etienne and A. S. Weller, Chem. Soc. Rev., 2014, 43, 242
DOI: 10.1039/C3CS60295H

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