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

New complex compounds[(2-clpy) 2 Pd(OOCMe) 2 ] ( I ), [{(Ph)Pd(2-clpy)} 2 (OOCMe) 4 Pd]·3C 6 H 6 ( II ), and [{(Ph)Pd(2-clpy)} 2 (OOCMe) 4 Pd] ( III ) are obtained in the interaction of palladium acetate [Pd 3 (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.