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Cg1, Cg3 and Cg4 are the centroids of the C9/N10/C11–C14, C5–C8/C13/C14 and C18–C23 rings, respectively.
| X | I | J | I⋯J | X⋯J | X–I⋯J |
|---|---|---|---|---|---|
| C21 | Br24 | Cg1iv | 3.958 (2) | 4.158 (3) | 82.3 (1) |
| C21 | Br24 | Cg3iv | 3.937 (2) | 4.235 (4) | 85.4 (2) |
| C30 | F31 | Cg4v | 3.212 (4) | 4.305 (5) | 137.5 (3) |
Symmetry codes: (iv) 
; (v) 
.
