Palladium(II) complexes of anthraquinone-based As–O–As type and Se–O–Se type bipodands. Synthesis, X-ray crystallography and catalytic properties

New organoarsine containing anthraquinone-based open bipodand ligand and its Pd(II) complex have been synthesized and characterized. X-ray structures of complex shows that the ligand chelates with Pd(II) and formed a 14 membered palladacycle. One of the palladium complex reported here serves as a catalyst for the Heck reaction. Electrochemical behaviors of new compounds versus Ag/AgCl are also discussed.