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Cg is the centroid of the C3–C8ring.
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| N2—H2⋯O2ii | 0.86 (1) | 1.91 (1) | 2.750 (8) | 167 (1) |
| N4—H4⋯O1iii | 0.86 (1) | 2.41 (1) | 3.044 (8) | 132 (1) |
| N4—H4⋯O2iii | 0.86 (1) | 2.30 (1) | 3.064 (8) | 148 (1) |
| C12—H12⋯Cg5iv | 0.93 (2) | 2.83 (2) | 3.702 (15) | 156 (2) |
Symmetry codes: (ii) 
; (iii) 
; (iv) 
.
