Table 1. Hydrogen-bond geometry (Å, °).
Cg is the centroid of the C2/C3/C8/C9/C10/C11 ring.
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| C14—H14⋯O2Ai | 0.93 | 2.53 | 3.235 (3) | 133 |
| C18—H18⋯Cgii | 0.93 | 2.65 | 3.347 (3) | 132 |
Symmetry codes: (i) 
; (ii) 
.
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