Table 2. Hydrogen-bond geometry (Å, °) for (II) .
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| C16—H16⋯O1i | 0.93 | 2.57 | 3.406 (2) | 150 |
| C18—H18B⋯O1ii | 0.97 | 2.40 | 3.333 (2) | 161 |
Symmetry codes: (i) 
; (ii) 
.
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