Synthesis, characterization and crystal structures of monocyclopalladated and biscyclopalladated 1,1′-bisferrocenylpyrimidine-monophosphine complexes

The synthesis and characterization of a new 1,1′-di(4,6-dimethyl-2-pyrimidinyl)ferrocene ligand 1 and its monophosphine-palladacycle complexes 2-3 are reported. The complex 2 was found to be a biscyclopalladated complex, while the complex 3 was a monocyclopalladated complex. Additionally, their detailed structures have been determined by X-ray single-crystal diffraction.