DIFFERENT CONNECTIVITIES IN SUPRAMOLECULAR AGGREGATES OF TRINUCLEAR GOLD(I) COMPLEXES WITH THE SACCONI-LIGAND N(CH2CH2PPH2)(3)

tris(2-(diphenylphosphanyl)ethyl)amine]-trigold(I) (1) has been prepar ed by treating the tripod ligand tris(2-(diphenylphosphanyl)ethyl)amin e with three equivalents of chloro(dimethylsulfide)gold(I) in dichloro methane. Treatment of solutions of 1 in dichloromethane with potassium bromide or potassium iodide resulted in the formation of the tribromo (2) and triiodo (3) derivatives. All compounds were crystallized and X-ray structure analyses have been performed. Complexes 1 and 2 are is omorphous and crystallize in the rhombohedral space group R (3) over b ar. An aggregation into layers through Au-X' contacts of 3.734 (X = Cl ) and 3.711 Angstrom (X = Br), but no Au-Au contacts were observed. Co mpound 3 on the other hand crystallizes in the monoclinic space group P2(1)/c. The molecules are linked into strings through short intermole cular Au-Au contacts of 3.1072 Angstrom.