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| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| N1—H1n⋯O4 | 0.87 (4) | 1.99 (4) | 2.616 (5) | 128 (3) |
| N1—H1n⋯O4i | 0.87 (4) | 2.41 (4) | 3.166 (5) | 146 (4) |
| C3—H3⋯O1ii | 0.95 | 2.39 | 3.335 (5) | 176 |
| C6—H6⋯N2 | 0.95 | 2.40 | 2.735 (5) | 100 |
Symmetry codes: (i) 
; (ii) 
.
