Table 1. Hydrogen-bond geometry (, ).
| DHA | DH | HA | D A | DHA |
|---|---|---|---|---|
| O1H1N1 | 0.82 | 1.84 | 2.565(3) | 147 |
| C17H17O1i | 0.93 | 2.60 | 3.413(3) | 147 |
Symmetry code: (i) 
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