Methylpalladium(ii) carbene complexes of the type [Pd(NHC)Me(P-P)]BF 4 (NHC = N-heterocyclic carbene, P-P = chelating phosphine) have been synthesised, the complex [Pd(tmiy)Me(dcype)]BF4 (tmiy = 1,3,4,5-tetramethylimidazol-2-ylidene, dcype = 1,2-bis(dicyclohexylphosphino) ethane) being characterised crystallographically. Complexes bearing the tmiy ligands were shown to decompose in an analogous manner to complexes bearing monodentate phosphine ligands, with the rate of decomposition being nominally linked to the size of the chelate ring. The decomposition of these complexes in the presence of aryl halides - expected to yield Pd(Ar)X(P-P) - was studied and shown instead to yield PdX2(P-P) and [Pd(tmiy)X(P-P)]BF4. Additionally, Pd(Me)X(P-P) and Pd(Ar)X(P-P) were observed in some cases. Intermolecular cross-over reactions between the starting complex and Pd(Ar)X(P-P) were found to be the source of these unexpected products. © The Royal Society of Chemistry 2007.

Item Type:	Refereed Article
Research Division:	Chemical Sciences
Research Group:	Other Chemical Sciences
Research Field:	Organometallic Chemistry
Objective Division:	Expanding Knowledge
Objective Group:	Expanding Knowledge
Objective Field:	Expanding Knowledge in the Chemical Sciences
UTAS Author:	Magill, AM (Miss Alison Magill)
UTAS Author:	Yates, BF (Professor Brian Yates)
UTAS Author:	Cavell, KJ (Professor Kingsley Cavell)
ID Code:	51079
Year Published:	2007
Web of Science® Times Cited:	29
Deposited By:	Chemistry
Deposited On:	2007-08-01
Last Modified:	2012-03-05
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