Figure 1
A projection of the structure of (I) along the a axis, showing the hydrogen-bond network formed by the [Al(H2O)6]3+ (light grey octahedra), SO42− (dark grey tetrahedra), C4H12N22+ and H2O entities. Hydrogen bonds formed via water molecules are represented by thick dashed lines, while hydrogen bonds involving N atoms are shown as thin dashed lines. H atoms have been omitted for clarity. |