Figure 3
A stereoview of part of the crystal structure of (III) (CSD refcode UFAGUE; Wen et al., 2007), showing the formation of a hydrogen-bonded chain along [001] containing two independent R22(8) rings. The original atom coordinates have been used (Wen et al., 2007). For the sake of clarity, H atoms bonded to C atoms have all been omitted. Hydrogen bonds are indicated by dashed lines. |