Reinholdt Anders, Majer Sean H, Gelardi Rikke M, MacMillan Samantha N, Hill Anthony F, Wendt Ola F, Lancaster Kyle M, Bendix Jesper
Department of Chemistry , University of Copenhagen , Universitetsparken 5 , DK-2100 Copenhagen , Denmark.
Department of Chemistry and Chemical Biology, Baker Laboratory , Cornell University , Ithaca , New York 14853 , United States.
Inorg Chem. 2019 Apr 15;58(8):4812-4819. doi: 10.1021/acs.inorgchem.8b03222. Epub 2019 Mar 27.
We report the first examples of the carbide ligand in (CyP)ClRu≡C (RuC) developing into a μ ligand toward metal centers. Conventionally, sterics exclude this coordination mode, but Fe(CO) and Co(CO) expel bridging CO ligands upon reaction with RuC to form trimetallic (CyP)ClRu═CFe(CO) (RuCFe) and (CyP)ClRu═CCo(CO) (RuCCo) complexes. Thus, the proximity offered by metal-metal associations in bimetallic carbonyl complexes allows the formation of trinuclear carbide complexes as verified by NMR, Mössbauer, and X-ray spectroscopic techniques.
