Table 2. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| N1—H1⋯O4i | 0.96 (2) | 1.74 (2) | 2.699 (3) | 176 (2) |
| N2—H2A⋯O3 | 0.97 (2) | 1.78 (2) | 2.752 (2) | 173.0 (19) |
| N3—H3A⋯O1 | 1.07 (2) | 1.61 (2) | 2.673 (2) | 170.6 (19) |
| N4—H4⋯O2ii | 0.98 (2) | 1.77 (2) | 2.745 (2) | 178.8 (19) |
| O5—H5⋯O3 | 0.98 (3) | 1.53 (3) | 2.509 (2) | 177 (3) |
| O8—H8⋯O2iii | 1.02 (3) | 1.50 (3) | 2.518 (2) | 176 (3) |
| C2—H2⋯O6 | 0.93 | 2.29 | 3.024 (3) | 136 |
| C3—H3⋯O8iv | 0.93 | 2.43 | 3.354 (3) | 176 |
| C6—H6⋯O5 | 0.93 | 2.43 | 3.346 (3) | 169 |
| C7—H7⋯O7v | 0.93 | 2.29 | 3.017 (3) | 134 |
Symmetry codes: (i) 
; (ii) 
; (iii) 
; (iv) 
; (v) 
.