Table 1. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| C4—H4⋯N15i | 0.93 | 2.62 | 3.550 (3) | 178 |
| C6—H6B⋯N12ii | 0.97 | 2.54 | 3.430 (2) | 152 |
Symmetry codes: (i) 
; (ii) 
.
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