Synthesis and Structures of Mono- and Trinuclear Complexes of Palladium(II) with 2-Chloropyridine

New complex compounds[(2-clpy)₂Pd(OOCMe)₂] (I), [{(Ph)Pd(2-clpy)}₂(OOCMe)₄Pd]·3C₆H₆ (II), and [{(Ph)Pd(2-clpy)}₂(OOCMe)₄Pd] (III) are obtained in the interaction of palladium acetate [Pd₃(OOCMe)₆] with 2-chloropyridine (2-clpy) and structurally characterized by single crystal X-ray diffraction. It is found that in the inert medium, mononuclear compound I forms and it can be isolated in the crystalline state, while trinuclear complexes II and III are the products of benzene metalation with palladium under mild conditions.