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Rebecca A. Musgrave, Robert S. P. Turbervill, Mark Irwin and Dr. Jose M. Goicoechea Transition Metal Complexes of Anionic N-Heterocyclic Dicarbene Ligands Angewandte Chemie International Edition 51

Version of Record online: 7 SEP 2012 | DOI: 10.1002/anie.201206100

Thumbnail image of graphical abstract

A tale of two carbenes: Reaction of :C[N(2,6-iPr2C6H3)CH]2 (IPr) with Mn3(mes)6 (mes=2,4,6-trimethylphenyl) yielded the trigonal planar complex [Mn(IPr)(mes)2]. Reduction of this species with potassium/graphite in THF afforded the polymeric dicarbene-bridged species K[{:C[N(2,6-iPr2C6H3)]2(CH)C}2Mn(mes)(thf)]⋅THF (see picture). The anionic moiety in this complex is the first reported example of a transition metal complex containing an N-heterocyclic dicarbene ligand. Gray C, blue N, red Mn.

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