Figure 6From: Describing hydrogen-bonded structures; topology graphs, nodal symbols and connectivity tables, exemplified by five polymorphs of each of sulfathiazole and sulfapyridine Topology graphs for the hydrogen bonded structures of four polymorphs of sulfapyridine (Spn): a) the sqp framework of form II, b) the tts net of form III, c) the SnS-type net of form IV, d) interpenetration of the nov-type framework (A molecules) by an hcb-type layer (B molecules) and e) the framework of type V. Back to article page