Figure 5
The ribbons in (5k) resulting from centrosymmetric molecular dimers [with R22(8) rings formed by the (MeO)2cDHAP molecules joined via strong O—H⋯O hydrogen bonds; dashed lines (red in the electronic version of the paper)] linked through C—H⋯O contacts (black dashed lines). H atoms not involved in hydrogen bonding have been omitted for clarity. [Symmetry codes: (iii) −x + 1, −y + 1, −z + 1; (x) −x + 2, −y + 1, −z.] |