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Figure 5
Visualization of intermolecular distances and interplanar angles in the structures of BaP polymorphs. (a) BaP-I and (b) BaP-II, as viewed along the [504] direction; (c) BaP-III, as viewed along the [540] direction (hydrogen atoms are not shown, carbon atoms are shown as black dots). The blue lines represent the planes of the flat molecules; in BaP-I and BaP-II all intermolecular distances are equal (designated d); d1 and d2 are the interplanar distances in BaP-III, which are almost equal; δ is the interplanar angle.

IUCrJ
Volume 12| Part 1| January 2025|
ISSN: 2052-2525
https://doi.org/10.1107/S2052252524010455