DIFFERENT COORDINATION MODES OF THE 1,1,1-TRIS(DIPHENYLPHOSPHINOMETHYL) ETHANE LIGAND IN GOLD(I) AND GOLD(III) COMPLEXES

The synthesis of pentafluorophenyl mono- or poly-nuclear gold(I) and/o r gold(III) complexes with the tridentate ligand (PPh(2)CH(2))(3)CCH3 (tdppme) are described in different coordination modes not represented thus far. The reaction of the free phosphine with gold(I) or gold(III ) derivatives in different molar ratios gives [{AU(C6F5)}(3)(mu(3)-eta (3)-tdPPme)], [{Au(C6F5)}(2)(mu-eta(2)-tdPPmeO)], [Au(C6F5)(3)(eta(3)- tdppme)] or [Au(C6F5)(2)(eta(2)-tdppme)]Cl. The mononuclear derivative s further react with gold(I) or gold(III) species giving rise to di- o r tri-nuclear complexes which contain the triphosphine acting as a mu( 3)-eta(3), mu-eta(2), mu-eta(3) or eta(2) ligand.