Homo- and hetero-, bi- and tri-nuclear palladium(II) and platinum(II) complexes containing single bridging chalcogenolate of a metallo-ligand, [MCl(ECH2CH2NMe2)(PR3)] (M = Pt, Pd; E = Se, Te)

Bi- and tri-nuclear palladium/platinum complexes of the types [MCl(ECH2CH2NMe2)(PR3)M′Cl2(PR3)] (M, M′ = Pd or Pt) and [{PtCl(SeCH2CH2NMe2)(PR3)}2M′ Cl2] (M′ = Pd or Pt; PR3 = PEt3 or image) have been prepared. All complexes were characterized by elemental analysis, NMR (1H, 31P, 77Se, 125Te, 195Pt) data. The structures of [PdCl(SeCH2CH2NMe2)(PPh3)PtCl2(PPh3)] and [{PtCl(SeCH2CH2NMe2)(PEt3)}2PtCl2] have been established by single crystal X-ray diffraction analysis. In the latter complex, three square planar platinum atoms are held together by the single bridging selenolate group in an almost linear chain arrangement.