cis-Bis(μ-50-phenyl-3-p-tolylpyrazolato-k2N:N′)-bis[(4,4′-dimethyl-2,2′-bipyridine-k2N,N′)palladium(II)] trans-bis(μ-5-phenyl-3-p-tolylpyrazolato-k2N:N′)bis[bis[(4,4′-dimethyl-2,2′-bipyridine-k2N,N′)-palladium(II)] tetrakis(tetrafluoridoborate)

In the crytal structure of the title compound, [ Pd-2( C56H50N8)](2)( BF4)(4)center dot 8CH(3)CN center dot H2O, the asymmetric 5-phenyl-3-p-tolylpyrazolate ligands bridge ( 4,40-dimethyl-2,20-bipyridine- kappa N-2,N') palladium( II) units in cis and trans fashions, resulting in two coexistent dipalladium complexes. The six-membered rings consisting of the two Pd atoms and the four pyrazolyl N atoms have boat-shaped conformations in both independent complexes; the Pd atoms are four-coordinate in square-planar environments. The crystal structure is stabilized by electrostatic forces between the cations and anions, and weak intermolecular hydrogen bonds involving tetrafluridoborate anions ( C-H center dot center dot center dot F), the solvent acetonitrile molecules ( C-H center dot center dot center dot N) and water molecules ( C-H center dot center dot center dot O).