Figure 3
Part of the crystal structure of (I), showing the formation of a hydrogen-bonded chain of R22(8) rings running parallel to the [001] direction. For the sake of clarity, H atoms bonded to C atoms have been omitted. Dashed lines indicate hydrogen bonds. Atoms marked with an asterisk (*), a hash symbol (#) or a dollar sign ($) are at the symmetry positions (−x + 1, y, −z + ), (x, y, z + 1) and (−x + 1, y, −z − ), respectively. |