Figure 1 The mol­ecular structure of (I). Displacement ellipsoids are drawn at the 30% probability level. H atoms are represented as small spheres of arbitrary radii. Hydrogen bonds are represented as dotted lines [Symmetry code: (i) 1 - x, 1 - y, 1 - z]. Only the symmetry unique cation and solvent water mol­ecule are shown.  [article HTML]