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Figure 1
Conformations of the CPA molecules in different polymorphs that can exist at ambient conditions. Molecules are shown with the N–C–N plane normal to the plane of the figure.

IUCrJ
Volume 13| Part 2| March 2026| Pages 146-158
ISSN: 2052-2525
https://doi.org/10.1107/S2052252525011601