| D—H···A | D—H | H···A | D···A | D—H···A |
| N2—H2A···O5i | 0.90 | 2.11 | 3.005 (9) | 173 |
| C2—H2···O4i | 0.95 | 2.41 | 3.201 (10) | 140 |
| C4—H4···O6ii | 0.95 | 2.60 | 3.329 (9) | 134 |
| N4—H4A···O2iii | 0.91 | 2.15 | 3.043 (9) | 168 |
| C16—H16···O1iii | 0.95 | 2.39 | 3.171 (10) | 139 |
| C18—H18···O3iv | 0.95 | 2.61 | 3.340 (10) | 134 |