| D—H···A | D—H | H···A | D···A | D—H···A |
| N4—H4N···N3i | 0.86 | 2.17 | 3.022 (3) | 170 |
| N9—H9N···N8ii | 0.86 | 2.20 | 3.044 (3) | 169 |
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