Figure 3
Part of the crystal structure of (I), showing the formation of a hydrogen-bonded ribbon running parallel to the [010] direction and containing five distinct types of ring. For the sake of clarity, H atoms bonded to C atoms have been omitted. Atoms labelled with an asterisk (*), a hash symbol (#) or a dollar sign ($) are at the symmetry positions (x, 1 + y, z), (1 − x, −y, 2 − z) and (1 − x, 1 − y, 2 − z), respectively. |