Table 1. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| N1—H1A⋯Cl3 | 0.81 (3) | 2.67 (3) | 3.406 (2) | 151 (3) |
| N1—H1B⋯Cl2 | 0.87 (3) | 2.36 (3) | 3.211 (2) | 163 (2) |
| N8—H8A⋯Cl3 | 0.91 (3) | 2.33 (3) | 3.179 (2) | 156 (3) |
| N4′—H4D⋯O1 | 0.81 (3) | 2.25 (3) | 2.915 (3) | 139 (2) |
| N8′—H8C⋯O1 | 0.87 (3) | 2.15 (3) | 2.964 (4) | 155 (3) |
| N1′—H1C⋯Cl3′ | 0.82 (3) | 2.43 (4) | 3.246 (2) | 174 (3) |
| N4—H4A⋯Cl2i | 0.87 (3) | 2.65 (3) | 3.423 (2) | 149 (2) |
| N5′—H5D⋯Cl2′ | 0.85 (3) | 2.39 (3) | 3.233 (2) | 168 (3) |
| N8′—H8D⋯Cl3′ | 0.87 (3) | 2.48 (3) | 3.252 (2) | 148 (3) |
| N4—H4B⋯Cl3ii | 0.93 (3) | 2.45 (3) | 3.265 (2) | 147 (2) |
| N8—H8B⋯Cl3ii | 0.79 (3) | 2.49 (3) | 3.280 (2) | 176 (3) |
| N9—H9A⋯Cl2iii | 0.84 (4) | 2.57 (4) | 3.391 (2) | 166 (3) |
| N5′—H5C⋯Cl1i | 0.91 (3) | 2.63 (3) | 3.380 (2) | 141 (2) |
| N1′—H1D⋯Cl2′iv | 0.89 (3) | 2.49 (3) | 3.288 (2) | 149 (2) |
| N9′—H9D⋯Cl2′iv | 0.85 (3) | 2.81 (3) | 3.615 (2) | 158 (2) |
| N5—H5A⋯Cl2i | 0.88 (3) | 2.38 (3) | 3.220 (2) | 159 (2) |
| O1—H2W⋯Cl3′i | 0.842 (17) | 2.27 (2) | 3.092 (3) | 165 (4) |
Symmetry codes: (i) 
; (ii) 
; (iii) 
; (iv) 
.