Work

Synthesis, Reactivity, and Bonding Analysis of a Tetracoordinated Nickel Carbene

Year: 2024

Type: article

Abstract: Nickel carbenes are key reactive intermediates in the catalytic cyclopropanation of olefins and other reactions, but isolated examples are scarce and generally rely on low coordination numbers (≤3) to stabilize the metal-ligand multiple bond. Here we report the isolation and characterization of a stable tetracoordinated nickel carbene bearing a triphosphine pincer ligand. Its nucleophilic character is evidenced by reaction with acids, and it can transfer the carbene fragment to CO to form a ketene. A computational study of the Ni=C chemical bond sheds light on the role of the third phosphine in the pincer framework to the stabilization of the nickel carbene fragment.

Source: Chemistry - A European Journal

DOI: 10.1002/chem.202403211

Authors: Pablo M. Pérez‐García, María L. G. Sansores‐Paredes, Célia Fonseca Guerra, Pascal Vermeeren, Marc‐Etienne Moret

Institutions: Utrecht University, Universidad Privada Boliviana, Vrije Universiteit Amsterdam

Language: English

Topic: Organometallic Complex Synthesis and Catalysis

Subfield: Organic Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,640

Funders: European Commission, Nederlandse Organisatie voor Wetenschappelijk Onderzoek, European Research Council, H2020 European Research Council