Figure 2
The hydrogen-bonding environment of one ammonium cation (top) and one violurate anion (bottom) in (I). Dotted lines (blue in the electronic version of the paper) indicate the hydrogen bonds linking the violurate anions into a tape, five-dash lines (orange in the electronic version) indicate the N—H⋯O bonds from ammonium, and long-dash lines (black in the electronic version) indicate the N—H⋯N bonds. |