Unsupported d8–d8 interactions in cationic PdII and PtII complexes: evidence for a significant metal–metal bonding character

Isostructural dinuclear Pd and Pt complexes that exhibit unique d8–d8 interactions between dicationic metal centers are reported. These metal–metal interactions are not supported by any bridging ligands and suggest a significant metal–metal bonding character for both Pd and Pt systems.