Table 1. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| N1—H1⋯O1i | 0.916 (19) | 2.153 (19) | 3.0262 (15) | 159.0 (15) |
Symmetry code: (i) 
.
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