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Figure 18
(a) The packing of the room-temperature form of thiourea (as given by Mercury choosing the Packing box) showing four molecules. (b) The asymmetric unit of thiourea with symmetry operations containing fixed points (inversion centre and mirror plane parallel to the ac plane) of the unit cell (as given by Mercury selecting Asymmetric Unit and Auto centre boxes and Display/Symmetry Elements hiding screw axes and glide planes). Note that the contents shown by clicking Asymmetric Unit are not necessarily those in the asymmetric unit defined in ITA but are in some other visually convenient asymmetric region of the unit cell.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 57| Part 5| October 2024| Pages 1618-1639
https://doi.org/10.1107/S1600576724007659
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