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Figure 7
Single-crystal X-ray structures at 290 K showing 2D halogen-bonded sheets, layers and TE axes for (a) and (b) diolefin-I, (c) and (d) diolefin-Br, and (e) and (f) diolefin-I Br. Type-II halogen⋯halogen bonds are shown with yellow dashed lines, type-I bonds are shown with blue dashed lines and C—H⋯X forces are shown with green dashed lines.

IUCrJ
Volume 9| Part 1| January 2022| Pages 31-42
ISSN: 2052-2525
https://doi.org/10.1107/S2052252521009593