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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 and Kariuki, Benson 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: Cardiff Catalysis Institute (CCI)
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: 04 Jun 2017 02:08
URI: http://orca-mwe.cf.ac.uk/id/eprint/9736

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