Figure 2
A PLATON (Spek, 2003) view of the intra- and intermolecular hydrogen-bonded motif of (IIb). Only atoms involved in hydrogen bonding are labelled. C, O, N and H atoms are shown as spheres of arbitrary radii and hydrogen bonds are shown as dashed lines. [Symmetry codes: (i) −x, y − , −z; (ii) −x, y + , −z; (iii) x, y − 1, z.] |