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1. Platinum(ii) N-heterocyclic carbene complexes: coordination and cyclometallation.

Author

Giacomo L Petretto, Miao Wang, Antonio Zucca, and Jonathan P. Rourke

Subjects
*PLATINUM compounds, *DIMETHYL sulfoxide, *HETEROCYCLIC compounds, *COORDINATION compounds, *ORGANOMETALLIC chemistry, *CARBENES, *LIGANDS (Chemistry)
Abstract

Four different NHC ligands have been coordinated to Pt(ii) centres; for the first time cyclometallation of the NHC ligand was observed, but only when the platinum centre had a DMSO and two methyl co-ligands. Cyclometallation resulted in the exclusive formation of five-membered rings, and the absence of any double cyclometallation reactions with appropriate ligands rules out the possibility of an oxidative addition type mechanism for the cyclometallation reaction. [ABSTRACT FROM AUTHOR]

Published
2010
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