| D—H···A | D—H | H···A | D···A | D—H···A |
| N1—H3···O2ii | 0.879 (16) | 2.080 (16) | 2.9333 (10) | 163.3 (13) |
| O2—H8···O1iii | 0.863 (18) | 1.872 (18) | 2.7204 (9) | 167.1 (15) |
| C2—H2···O2ii | 0.972 (15) | 2.412 (14) | 3.3458 (11) | 161.0 (11) |
| C5—H4···O1iii | 0.988 (12) | 2.523 (12) | 3.2738 (12) | 132.6 (9) |
| C5—H5···O1iv | 0.992 (13) | 2.612 (13) | 3.5671 (12) | 161.7 (11) |