Figure 1
The main structural features of chlorpropamide polymorphs: (a) an infinite hydrogen-bonded ribbon (common for all the polymorphs), where hydrogen bonds are shown by dotted lines; (b) molecular conformations with the orientation of the alkyl tail in the molecule of type I (left) and of type II (right); (c) z-shaped (above) and π-shaped (below) motifs of a hydrogen-bonded ribbon. Adapted from Drebushchak et al. (2009). |