| D—H···A | D—H | H···A | D···A | D—H···A |
| C1—H1···O1 | 0.93 | 2.50 | 2.835 (6) | 101 |
| C9—H9A···N1i | 0.97 | 2.57 | 3.540 (6) | 178 |
| C18—H18A···N2ii | 0.96 | 2.60 | 3.470 (6) | 151 |
| C16—H16B···O3iii | 0.96 | 2.59 | 3.094 (7) | 113 |
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