Chapter 5: Carbene Complexes — Complexes with MC Double Bonds
Published:09 Jul 2021
Special Collection: 2021 ebook collection
Hiroshi Nakazawa, 2021. "Carbene Complexes — Complexes with MC Double Bonds", Organometallic Chemistry, Hiroshi Nakazawa, Julian Koe
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The term “carbene” is applied to organic compounds described as CR2. A transition metal complex having this as a ligand is referred to as a “carbene complex”, and may be written MCR2 with a double bond between M and C. There is a large difference in stability and reactivity between complexes with and without heteroatoms (such as N, O, and S atoms) on the carbene carbon. They are thus frequently distinguished by referring to the former as Fischer carbene complexes and to the latter as Schrock carbene complexes, named for the chemists who first synthesized them. This chapter describes the features and reactivity of carbene complexes.