Synthesis of [Au(NH3)2]+ salts and the crystal structure of [Au(NH3)2]Br

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Abstract
The complexes [Au(NH2R)2]X (R = H, Me, Et or But; 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.