Figure 11
Supramolecular association via hydroxy-O—H⋯O(hydroxy) hydrogen bonds in (II)–(IV): (a) hexameric cluster in (V), (b) dimeric aggregate sustained by additional hydroxy-O—H⋯N(cyano) hydrogen bonds in (III), (c) views of the supramolecular chain in (II) with non-crystallographic threefold symmetry and (d) views of the zigzag supramolecular chain in (IV). |