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Flash Communication: Formation of a κ 1 - o -Diphenyl-Nickel(II) Square Planar Complex via an Oxidative Addition of 2,2’-Dibromodiphenyl to Nickel(0)

Year: 2026

Type: article

Abstract: High Resolution Image Download MS PowerPoint Slide This Communication describes the reaction between Ni(PPh 3 ) 4 and 2,2’-dibromodiphenyl, leading to the isolation of an unprecedented κ 1 - o -diphenyl-nickel(II) square planar complex. Full NMR characterization and the X-ray crystal structure of the title compound are reported. Preliminary investigations on the mechanism conducting to the isolated species are presented. The results of control experiments carried out using 1,1-diphenylethylene as a radical scavenger are consistent with a radical pathway rather than a double oxidative addition of the diaryl substrate. DFT calculations on the transition states involved supported these observations.

Source: Organometallics

DOI: 10.1021/acs.organomet.5c00478

Authors: Anita Cinco, Gioele Colombo, Julien Furrer, Bruno Therrien, G. Attilio Ardizzoia, Stefano Brenna

Institutions: University of Insubria, Istituto Universitario di Studi Superiori di Pavia, University of Bern, University of Neuchâtel

Language: English

Topic: Organometallic Complex Synthesis and Catalysis

Subfield: Organic Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,500

Funders: Università degli Studi dell'Insubria, Ministero dell'Università e della Ricerca