Figure 2
Molecular packing in (I): (a) supramolecular ribbons propagating along the a axis sustained by hydrazide-N—H⋯O(water) (shown as blue dashed lines), and water-O—H⋯O(carbonyl) and water-O—H⋯N(pyridyl) hydrogen-bonds (orange dashed lines). Intramolecular hydroxy-O—H⋯N(imine) hydrogen-bonds are also indicated (pink dashed lines); (b) a view of the unit-cell contents in projection down the a axis. The Br⋯Br and C—H⋯O interactions are shown as olive-green and green dashed lines, respectively. |