Synthesis and crystal structures of new palladium catalysts for the hydromethoxycarbonylation of alkenes

The preparation and structural characterization of dimeric Pd(I)–Pd(I) complex [Pd2{(PPh3)(OSO2CF3)}2].CH2Cl2 (1) and three palladium center [Pd3{(PPh3)(OSO2CF3)}2] (2) and [Pd3(PPh3)4](SO3CF3)2 (3) complexes are reported. The complexes exhibit coordination in which the phosphine phenyl ring is used to stabilize Pd(I) centers in (1) and, Pd(I) and Pd(0) centers in (2) and (3) by acting as π electron donors. The complexes were characterized by single crystal X-ray crystallography.