An isolable, chelating bis[cyclic (alkyl)(amino)carbene] stabilizes a strongly bent, dicoordinate Ni(0) complex

Chelating ligands have had a tremendous impact in coordination chemistry and catalysis. Notwithstanding their success as strongly σ-donating and π-accepting ligands, to date no chelating bis[cyclic (alkyl)(amino)carbenes] have been reported. Herein, we describe a chelating, C 2 -symmetric bis[cyclic...

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Bibliographic Details
Published in:	Nature communications Vol. 15; no. 1; p. 3417
Main Authors:	Puerta Lombardi, Braulio M., Faas, Morgan R., West, Daniel, Suvinen, Roope A., Tuononen, Heikki M., Roesler, Roland
Format:	Journal Article
Language:	English
Published:	London Nature Publishing Group UK 23-04-2024 Nature Publishing Group Nature Portfolio
Subjects:	119/118 140/131 140/58 639/638/263/406/939 639/638/263/910 639/638/549/884 Carbenes Catalysis Chelation Cobalt Coordination compounds Humanities and Social Sciences Hydrocarbons Iron Ligands Metal complexes Metals multidisciplinary Nickel Organometallic compounds Oxidation Potassium Science Science (multidisciplinary) Structural analysis Transition metal compounds Zinc
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Summary:	Chelating ligands have had a tremendous impact in coordination chemistry and catalysis. Notwithstanding their success as strongly σ-donating and π-accepting ligands, to date no chelating bis[cyclic (alkyl)(amino)carbenes] have been reported. Herein, we describe a chelating, C 2 -symmetric bis[cyclic (alkyl)(amino)carbene] ligand, which was isolated as a racemic mixture. The isolation and structural characterization of its isostructural, pseudotetrahedral complexes with iron, cobalt, nickel, and zinc dihalides featuring eight-membered metallacycles demonstrates the binding ability of the bis(carbene). Reduction of the nickel(II) dibromide with potassium graphite produces a dicoordinate nickel(0) complex that features one of the narrowest angles measured in any unsupported dicoordinate transition metal complexes. Notwithstanding their success as strongly σ-donating and π-accepting ligands, to date no chelating bis[cyclic (alkyl)(amino)carbenes] have been reported. Here the authors describe a chelating, C 2 -symmetric bis[cyclic (alkyl)(amino)carbene] ligand, as well as its pseudotetrahedral complexes with iron, cobalt, nickel, and zinc dihalides.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	2041-1723 2041-1723
DOI:	10.1038/s41467-024-47036-7