SYNTHESIS OF [AU(NH3)(2)](+) SALTS AND THE CRYSTAL-STRUCTURE OF [AU(NH3)(2)]BR

The complexes [Au(NH(2)R)(2)]X (R = H, Me, Et or Bu(t); X = Br, SbF6 or BF4) have been synthesised and characterised by IR, NMR spectra and by thermal gravimetric and differential scanning calorimetry techniques; the single-crystal structural determination of [Au(NH3)(2)]Br has confirmed the linear co-ordination about gold and highlighted some interesting bond-length differences compared to [Ag(NH3)(2)]NO3.