Figure 2
The unit cell and crystal packing of (I), viewed along the b axis. H atoms bonded to C atoms have been omitted for clarity and hydrogen bonds are shown as dotted lines. The structure is divided into layers, limited by grey dashed lines, where each layer has a B (red in the electronic version of the paper) – A (blue) – B′ (yellow) composition. Hydrogen bonds in the hydrophilic core A are shown as dotted lines. |