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Figure 6
Calculated HOMOs and LUMOs (at an isovalue of 0.001 e au−3) for the trimer of a tetra­bromo­quinone molecule and two iodine anions, located at a distance of 3.947 Å from the centroid of the quinoid ring (as observed in the crystal structure).

IUCrJ
Volume 10| Part 2| March 2023| Pages 156-163
ISSN: 2052-2525
https://doi.org/10.1107/S2052252523000052