Table 1. Hydrogen-bond geometry (, ).
| DHA | DH | HA | D A | DHA |
|---|---|---|---|---|
| O3H3O1i | 0.84 | 1.73 | 2.564(1) | 174 |
| O5H5O2 | 0.84 | 1.73 | 2.565(1) | 170 |
| N1H1AO1ii | 0.91 | 2.08 | 2.854(1) | 143 |
| N1H1AO4ii | 0.91 | 2.23 | 2.964(1) | 137 |
| N1H1BO6 | 0.91 | 2.05 | 2.846(1) | 146 |
| C5H5CO4iii | 0.98 | 2.41 | 3.346(1) | 159 |
Symmetry codes: (i)
; (ii)
; (iii)
.