Table 1. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| N2—H21⋯O1i | 0.83 (5) | 2.20 (5) | 3.018 (4) | 169 (4) |
| N2—H22⋯O8ii | 0.84 (5) | 2.21 (5) | 3.012 (4) | 159 (5) |
| O3—H31⋯O7 | 0.79 (5) | 1.91 (5) | 2.696 (4) | 175 (5) |
| O5—H51⋯O3ii | 0.85 (4) | 1.87 (4) | 2.716 (3) | 177 (5) |
| O5—H52⋯O1iii | 0.84 (5) | 1.99 (6) | 2.795 (4) | 160 (6) |
| O6—H61⋯O4ii | 0.85 (3) | 1.86 (3) | 2.693 (3) | 169 (4) |
| O6—H62⋯O1iv | 0.85 (5) | 1.87 (5) | 2.685 (4) | 159 (5) |
| O7—H71⋯O7v | 0.78 (4) | 2.03 (3) | 2.795 (4) | 167 (6) |
| O7—H72⋯O2vi | 0.85 (5) | 1.88 (5) | 2.731 (4) | 177 (5) |
| O8—H81⋯O7vii | 0.77 (4) | 2.10 (4) | 2.802 (4) | 152 (6) |
| O8—H82⋯O2 | 0.83 (4) | 1.93 (5) | 2.752 (4) | 171 (4) |
Symmetry codes: (i)
; (ii)
; (iii)
; (iv)
; (v)
; (vi)
; (vii)
.