Synthesis and X-ray structure of the homobinuclear 2,2′-biimidazole-bridged palladium(II) complex [{Pd(dppp)}2(μ-biim)](OTf)2

Homobinuclear [{Pd(dppp)}2(μ-biim)](OTf)2 (4) (dppp=bis(diphenylphosphino)propane, biim=2,2′-biimidazole, OTf=OSO2CF3) is accessible by the reaction of [Pd(dppp)](OTf)2 (1) with H2biim (2) in the presence of an appropriate base. The structure of 4 was determined by X-ray crystallography. As a result thereof, the palladium atoms are located somewhat above and below the planar biim2− entity.