MONO OR BINUCLEAR ORTHOPALLADATED (CN) COMPLEXES (CN=PHENYLAZOPHENYL-C2,N1, DIMETHYLBENZYLAMINE-C2,N, 8-METHYLQUINOLINE-C8,N) CONTAINING TERMINAL OR BRIDGING SPR3 LIGANDS

The reactions between [Pd(CN)(S)2]+ (CN= phenylazophenyl-C2,N1; dimethylbenzylamine-C2,N; 8-methylquinoline-C8,N; S=THF or acetone) and SPPh3 or SPMe2Ph have been studied. The reactions in a 1:2 molar ratio render in all cases the corresponding [Pd(CN(SPR3)2]ClO4. For a 1:1 molar ratio SPPh3 gives either [Pd(CN(SPPh3)(S)]ClO4 or [Pd(CN)(OClO3(SPPh3)] depending on the solvent used, while SPMe2Ph yields the binuclear [Pd(CN)(μ- SPMe2Ph)]2(ClO4)2 complexes. IR and 31P NMR spectroscopy have been used for the characterization of the complexes. The structure of [Pd(C6H4N NC6H5)(OClO3)(SPPh3)] has been established by X-ray diffraction: monoclinic, space group P21/n, a=11.544(6), b=20.698(1), c=12.487(6) Å, β= 105.022(4)°; Z=4; Dc=1.568 g cm-3. The structure was solved by Patterson and refined to residuals of R=0.043, Rw=0.051. The complex presents a distorted square planar coordination around the palladium atom. © 1990.