Figure 3 Part of the crystal structure, showing the aggregation of [R_{2}^{1}](5), [R_{4}^{4}](16) and [R_{2}^{1}](7) hydrogen-bonding motifs. [Symmetry codes: (#) x - [{1\over 2}], y - [{1\over 2}], z; (°) x - [{1\over 2}], y + [{1\over 2}], z; () -x + 1, y, -z + [{3\over 2}]].  [article HTML]