Figure 4
A view of part of the crystal structure of (II), showing the formation of the chain of rings along [001]. Dashed lines indicate hydrogen bonds. H atoms bonded to C atoms have been omitted for clarity. Selected atoms are labelled to demonstrate the propagation of the corrugated chains down the c axis. [Symmetry codes: (iv) x, y, z − 1; (v) x, y, z + 1.] |