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Figure 4
Packing of α-Mn compared with δ-P4: left: α-Mn along the a axis, which is identical to the b and c axes caused by the cubic symmetry. Centre: centroids of the P4 tetrahedra along the a axis (top), b axis (middle) and c axis (bottom). Right: full tetrahedra of the new δ-P4 polymorph along the a axis (top), b axis (middle) and c axis (bottom).

IUCrJ
Volume 10| Part 6| November 2023| Pages 766-771
ISSN: 2052-2525
https://doi.org/10.1107/S2052252523009247