Table 2. Hydrogen-bond geometry (Å, °) for (I) .
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| N1—H1⋯O1 | 0.844 (18) | 2.029 (18) | 2.6495 (15) | 129.8 (15) |
| N1—H1⋯O1i | 0.844 (18) | 2.822 (18) | 3.644 (1) | 165.3 (15) |
Symmetry code: (i) 
.
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