Figure 3
Packing diagrams for (a) (I), projected on (401), and (b) (II), projected on (010). Dashed lines indicate hydrogen bonds. The shaded regions A and B correspond to different hydrogen-bonding regimes, as discussed in the Comment. [Symmetry codes: (i) −x + 2, y + , −z + ; (ii) x, y − 1, z.] |