Redetermination of the crystal structure of diammine silver(I)-sulfate, [Ag(NH3)2]2SO4

The crystal structure of diammine silver(I)-sulfate, [Ag(NH3)2]2SO4, has been redetermined from X-ray single crystal data: space groupP[unk]21c,a= 8.442(2) Å,c= 6.399(3) Å,Z= 2,R/Rw= 0.016/0.017 for 708 structure factors withI> 3σ(I) and 38 variables. The structure consists of metal-over-metal stacks of diammine silver(I)-cations withd(Ag – Ag) = 3.200 Å that are held together by hydrogen bonds. The diammine silver(I)-cations are significantly bent with an N – Ag – N angle of 174.3° due to additional oxygen coordination of Ag(I).