Article ID Journal Published Year Pages File Type
1326055 Journal of Organometallic Chemistry 2005 7 Pages PDF
Abstract

N-heterocyclic carbenes are compared with cyclopentadienyls and phosphines in terms of bonding and reactivity. Synthetic difficulties that currently prevent the general incorporation of NHCs into chelate, pincer and tripod ligand architectures are related to the inability of the NHC to reversibly decoordinate to correct binding ‘errors’ in the initial kinetic products of NHC complex formation. The strengths and weaknesses of current synthetic approaches, such as Lin’s Ag2O transmetallation route, are discussed. Linker dependent reactivity patterns are related to azole ring orientation effects and some aspects of cyclometalation are considered.

Graphical abstractN-heterocyclic carbenes are compared with cyclopentadienyls and phosphines as ligands for transition metals, emphasizing bonding and reactivity aspects.Figure optionsDownload full-size imageDownload as PowerPoint slide

Related Topics
Physical Sciences and Engineering Chemistry Inorganic Chemistry
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