Table 1. Hydrogen-bond geometry (Å, °).
Cg4 is the centroid of the C1–C5/C9 ring.
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| C16—H16⋯O3i | 0.93 | 2.44 | 3.349 (2) | 166 |
| C19—H19⋯Cg4ii | 0.93 | 2.84 | 3.720 (3) | 158 |
Symmetry codes: (i) 
; (ii) 
.
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