Flash Communication: Formation of a κ <sup>1</sup> - <i>o</i> -Diphenyl-Nickel(II) Square Planar Complex via an Oxidative Addition of 2,2’-Dibromodiphenyl to Nickel(0)
This Communication describes the reaction between Ni(PPh3)4 and 2,2’-dibromodiphenyl, leading to the isolation of an unprecedented κ1-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.
Authors
- Bruno Therrien (ORCID: https://orcid.org/0000-0002-0388-2745)
- Gioele Colombo (ORCID: https://orcid.org/0000-0002-1096-3316)
- Stefano Brenna (ORCID: https://orcid.org/0000-0002-2873-2436)
- Julien Furrer (ORCID: https://orcid.org/0000-0003-2096-0618)
- Anita Cinco (ORCID: https://orcid.org/0009-0006-4386-7634)
- G. Attilio Ardizzoia
Institutions
- University of Insubria (IT)
- University of Bern (CH)
- Istituto Universitario di Studi Superiori di Pavia (IT)
- BioPhage Pharma (Canada) (CA)
- University of Neuchâtel (CH)
- Universität Trier (DE)
Publication Details
- Journal
- Organometallics
- Published
- 2026-03-23
- DOI
- https://doi.org/10.1021/acs.organomet.5c00478
- Primary Topic
- Organometallic Complex Synthesis and Catalysis
- Type
- article
- Field-Weighted Citation Impact
- 0.00