Figure 10
`Buckle' hydrogen-bonding motif seen in 5 with extra cross-linking interactions viewed normal to the a axis. Only hydrogen atoms involved in intra- and intermolecular hydrogen bonding are shown. Dotted lines indicate hydrogen-bonding interactions. [Symmetry codes: (i) −x + 1, −y, 1 − z; (ii) −x + 1, −y, −z; (iii) −x + 1, −y + 1, −z + 1]. |