Work

Flash Communication: Pd2Zn2 Clusters from the Reduction of Palladium(II) Dichloride Precursors with Metallic Zinc

Year: 2025

Type: article

Abstract: High Resolution Image Download MS PowerPoint Slide We report the synthesis and solid-state characterization of two unusual Pd 2 Zn 2 clusters formed from the partial reduction of [PdL 2 Cl 2 ] precursors (L 2 = dcpe or dppe) with metallic zinc. The new clusters have been characterized by single crystal X-ray diffraction and contain a Pd 2 Zn 2 Cl 3 core capped by two chelating phosphine ligands with Zn in the formal +1.5 oxidation state. While they possess a near tetrahedral arrangement of metal ions, calculations and bonding analysis (NBO, AIM) suggest that there is limited Zn- - -Zn bonding in these species. Characterization in the solution state is suggestive of dynamic behavior on dissolution, with both diamagnetic and paramagnetic species observed by NMR and EPR spectroscopy. One of these Pd 2 Zn 2 clusters was shown to be an effective precursor for the homocoupling of an aryl bromide.

Source: Organometallics

DOI: 10.1021/acs.organomet.4c00506

Authors: Georgina Rai, Martí Garçon, Philip W. Miller, Mark R. Crimmin

Institution: Imperial College London

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: GlaxoSmithKline, Engineering and Physical Sciences Research Council