Issue 32, 2006
From the journal:

Dalton Transactions

Rhodium(i) and iridium(i) complexes of pyrazolyl-N-heterocyclic carbeneligands

Barbara A. Messerle,*a   Michael J. Pagea  and  Peter Turnerb  

* Corresponding authors

a School of Chemistry, University of New South Wales, Sydney, NSW, Australia

b School of Chemistry, University of Sydney, Sydney, NSW, Australia
E-mail: b.messerle@unsw.edu.au

Abstract

Several Rh(I) and Ir(I) complexes containing an N-heterocyclic carbene-pyrazolyl chelate ligand have been synthesised. Determination of the single-crystal X-ray structure of the Ir(I) complex showed a novel binding mode with the iridium centre coordinated to two ligands via two carbene donors in preference to one ligand forming the entropically favoured chelate. The hydrogenation activity of several of these complexes was investigated along with that of previously synthesised Rh(I) and Ir(I) complexes containing an analogous phosphine-pyrazolyl chelate.

Graphical abstract: Rhodium(i) and iridium(i) complexes of pyrazolyl-N-heterocyclic carbene ligands

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Article information

DOI
https://doi.org/10.1039/B603455A
Article type
Paper
Submitted
07 Mar 2006
Accepted
25 May 2006
First published
09 Jun 2006

Dalton Trans., 2006, 3927-3933

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Rhodium(I) and iridium(I) complexes of pyrazolyl-N-heterocyclic carbene ligands

B. A. Messerle, M. J. Page and P. Turner, Dalton Trans., 2006, 3927 DOI: 10.1039/B603455A

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