Figure 8
Hydrogen-bonding pattern in 2. (Top) Chains along b created by hydrofumarate anions. For clarity, only the 3-dimethylazaniumyl-1-hydroxypropyl fragments of the cations are shown, and H atoms not involved in hydrogen bonds have been omitted. (Bottom) Segment of an entire ribbon, including full cations. Color coding: O, N, and Br atoms are shown with 50% probability displacement ellipsoids, with all other atoms in capped-stick mode and color coded by the symmetry equivalence of their anion and cation (A and B cations in light and dark green, and A and B anions in orange and red). Hydrogen bonds are shown as turquoise and red dashed lines. |