Figure 2
Molecular packing in (I): (a) view of two-dimensional supramolecular array sustained by hydroxy-O—H⋯O(hydroxy) and hydroxy-O–H⋯N(pyridyl) hydrogen bonding with all but the acidic H atoms removed and (b) a view of the unit-cell contents in projection down the c axis, with the non-coordinating 4,4′-bipyridine molecules in one channel highlighted in space-filling mode. The O—H⋯O, O—H⋯N, C—H⋯O, C—H⋯S and π–π interactions are shown as orange, blue, pink, sea-blue and purple dashed lines, respectively. |