Figure 2
Two layers of hydrogen-bonded molecules: (a) in the low-temperature structure at 123 K and (b) the ORTEP (Johnson, 1965) drawing of the high-temperature structure at 250 K, both viewed down [001]. The thermal ellipsoids are drawn at the 50% probability level. Part (b) only shows one conformation of the disordered cyclohexane rings, for clarity. The H atoms are represented as small circles of arbitrary radius. The double bonds are shown as double lines and the hydrogen bonds as dashed lines. |