Table 1. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| N2A—H3N1⋯O1C | 0.904 (19) | 2.220 (19) | 3.0832 (14) | 159.6 (15) |
| N2A—H3N2⋯N3B | 0.91 (2) | 2.40 (2) | 3.2251 (15) | 150.9 (15) |
| N2A—H3N2⋯O2B | 0.91 (2) | 2.483 (19) | 3.2492 (14) | 141.7 (15) |
| N5A—H4AB⋯O1A | 0.88 | 2.05 | 2.7770 (14) | 140 |
| N2B—H3B2⋯N3C i | 0.929 (19) | 2.233 (19) | 3.1619 (15) | 179.1 (15) |
| N2B—H3B1⋯O1B ii | 0.89 (2) | 2.27 (2) | 3.1356 (15) | 163.1 (16) |
| N5B—H4BB⋯O1B | 0.88 | 2.04 | 2.7655 (14) | 139 |
| N2C—H3C2⋯O1A | 0.906 (18) | 2.171 (18) | 2.9455 (15) | 143.1 (15) |
| N2C—H3C1⋯O2B | 0.88 (2) | 2.41 (2) | 3.0718 (14) | 132.8 (16) |
| N5C—H4CB⋯O1C | 0.88 | 2.05 | 2.7721 (13) | 139 |
Symmetry codes: (i) 
; (ii) 
.