Figure 5
A view of part of the crystal structure of (II), showing the aggregation of R42(20) and R42(24) ring hydrogen-bonding motifs forming sheets in the bc plane. H atoms not involved in hydrogen bonding have been omitted for clarity. Dashed lines indicate hydrogen bonds. [Symmetry codes: (i) −x + 1, −y + 2, −z + 1; (ii) x − 1, y, z + 1.] |