Transition metal carbyne complexes are organometallic compounds with a triple bond between carbon and the transition metal.[1] This triple bond consists of a σ-bond and two π-bonds.[2] The HOMO of the carbyne ligand interacts with the LUMO of the metal to create the σ-bond. The two π-bonds are formed when the two HOMO orbitals of the metal back-donate to the LUMO of the carbyne. They are also called metal alkylidynes—the carbon is a carbyne ligand. Such compounds are useful in organic synthesis of alkynes and nitriles. They have been the focus on much fundamental research.[3]
^Cui, Mingxu; Jia, Guochen (2022-07-20). "Organometallic Chemistry of Transition Metal Alkylidyne Complexes Centered at Metathesis Reactions". Journal of the American Chemical Society. 144 (28): 12546–12566. doi:10.1021/jacs.2c01192. ISSN 0002-7863. PMID 35793547.
^Kim, Heesook P.; Angelici, Robert J. (1987). Transition Metal Complexes with Terminal Carbyne Ligands. Advances in Organometallic Chemistry. Vol. 27. pp. 51–111. doi:10.1016/S0065-3055(08)60026-X. ISBN 9780120311279. {{cite book}}: |journal= ignored (help)
^Elschenbroich, C. (2006). Organometallics. Weinheim: Wiley-VCH. ISBN 978-3-527-29390-2.
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form acetylides (capable of forming polymeric structures), carbenes and carbynes[citation needed]. The classic method for the preparation of LAuR compounds...
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