| D—H···A | D—H | H···A | D···A | D—H···A |
| N1—H1···O4i | 0.86 | 1.82 | 2.6785 (19) | 176 |
| N4—H2···O2ii | 0.86 | 2.17 | 2.8350 (19) | 134 |
| N4—H3···N2ii | 0.86 | 2.14 | 2.994 (2) | 171 |
| N5—H4···O2 | 0.86 | 2.14 | 2.998 (2) | 172 |
| N5—H5···N3iii | 0.86 | 2.23 | 3.091 (2) | 178 |
| N6—H6···O1iii | 0.86 | 2.15 | 2.8592 (19) | 140 |
| N6—H7···O3i | 0.86 | 2.02 | 2.880 (2) | 173 |
| O1—H10···O3 | 1.00 (2) | 1.47 (2) | 2.450 (2) | 165 (2) |