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Figure 4
(a) Schematic of the expected orientation of electrophilic (δ+) and nucleophilic (δ−) regions around the Ch atom within the C—Ch—C σ plane and in the perpendicular π plane. (b) Structural angles used in the characterization of the C—Ch1⋯Ch2—C interactions (Ch1/Ch2 = S/Se/Te).

IUCrJ
Volume 12| Part 3| May 2025|
ISSN: 2052-2525
https://doi.org/10.1107/S2052252525001447