Issue 6, 2014
From the journal:

Chemical Communications

Solvent promoted reversible cyclometalation in a tethered NHC iridium complex†

James E. Wheatley,a   C. André Ohlinb  and  Adrian B. Chaplin*a  

* Corresponding authors

a Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK
E-mail: a.b.chaplin@warwick.ac.uk

b School of Chemistry, Monash University Clayton, Victoria 3800, Australia

Abstract

Reaction of [Ir(COD)(py–ItBu)]+ (py–ItBu = 3-tert-butyl-1-picolylimidazol-2-ylidene) with acetonitrile results in reversible intramolecular C–H bond activation of the NHC ligand and formation of [Ir(η2:η1-C8H13)(py–ItBu′)(NCMe)]+. Coordinated COD acts as an internal hydride acceptor and acetonitrile coordination offsets the otherwise unfavourable thermodynamics of the process.

Graphical abstract: Solvent promoted reversible cyclometalation in a tethered NHC iridium complex

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Article information

DOI
https://doi.org/10.1039/C3CC48015A
Article type
Communication
Submitted
18 Oct 2013
Accepted
20 Nov 2013
First published
21 Nov 2013

Chem. Commun., 2014,50, 685-687

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Solvent promoted reversible cyclometalation in a tethered NHC iridium complex

J. E. Wheatley, C. A. Ohlin and A. B. Chaplin, Chem. Commun., 2014, 50, 685 DOI: 10.1039/C3CC48015A

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