Figure 12
Part of the crystal structure of compound (XII), showing the formation of a C(8)C(9)[R22(10)] chain of rings running parallel to [001]. The original atomic coordinates (Coda et al., 1986) were used, modified by translations to assemble the asymmetric unit into a single molecule. H atoms bonded to O atoms are in positions calculated by assuming O—H distances of 0.85 Å and linear O—H⋯O hydrogen bonds. For the sake of clarity, the unit-cell outline has been omitted. Atoms marked with an asterisk (*) or a hash (#) are at the symmetry positions (−x + , −y, z − ) and (−x + , −y, z + ), respectively. |