Novel quasi-scorpionate ligand structures based on a bis-N-heterocyclic carbene chelate core: synthesis, complexation and catalysis

Yasar, Sedat, Cavell, Kingsley John, Ward, Benjamin David ORCID: https://orcid.org/0000-0003-1406-5940 and Kariuki, Benson ORCID: https://orcid.org/0000-0002-8658-3897 2011. Novel quasi-scorpionate ligand structures based on a bis-N-heterocyclic carbene chelate core: synthesis, complexation and catalysis. Applied Organometallic Chemistry 25 (5) , pp. 374-382. 10.1002/aoc.1773

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Abstract

A series of novel quasi-scorpionate CNC donor ligands, MeC(2-C5H4N){CH2(imidazole-R)} (R = methyl, n-butyl, n-propenyl), in which a chelating bis(NHC) core is supplemented by a hemi-labile pyridyl donor, were prepared. The coordination chemistry of these ligands was investigated with silver, palladium, rhodium and iridium. The single crystal X-ray structures of [Rh(NC2Me)(COD)]Cl 8a and [Ir(NC2Pr)(COD)]Br 9b were determined. The catalytic potential of the rhodium and iridium complexes was assessed in the transfer hydrogenation of ketones; the iridium complexes, which show superior performance, form very effective and stable catalysts. Copyright © 2011 John Wiley & Sons, Ltd.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Research Institutes & Centres > Cardiff Catalysis Institute (CCI) Schools > Chemistry
Subjects:	Q Science > QD Chemistry
Uncontrolled Keywords:	* CNC donor ligands; bis-N-heterocyclic carbene; metal-complexes; catalysis
Publisher:	John Wiley & Sons
ISSN:	1099-0739
Last Modified:	18 Oct 2022 12:24
URI:	https://orca.cardiff.ac.uk/id/eprint/9736

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