| Abstract: | The title compound, Ag(C7H10N2)2]NO3·2H2O or Ag(dmap)2]NO3·2H2O, where dmap is 4‐(dimethylamino)pyridine, has a distorted linear coordination geometry around the AgI ion. A novel pattern of water–nitrate hydrogen‐bonded anionic strands is formed in the c direction, with the cationic Ag(dmap)2]+ monomers trapped between them. The AgI ion and the nitrate group atoms, as well as the water molecules (including the H atoms), are on a crystallographic mirror plane (Wyckoff position 4a). The influence of bulky methyl substituents in position 4 of the 4‐(dimethylamino)pyridine ligand on packing is discussed. The absolute structure was determined unequivocally. |
