Figure 10
Hydrogen-bonding pattern in 4a. (Top) Chains along b created by benzoate anions and water molecules. 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 cations and partially occupied water molecules. Color coding: O, N, and Br atoms are shown with 50% probability displacement ellipsoids, and all other atoms are in capped-stick mode and color coded by the symmetry equivalence of their anion and cation (cations in dark green and benzoate anions in orange). Hydrogen bonds are shown as turquoise and red dashed lines. |