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| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| N1—H1A⋯N10i | 0.88 (3) | 2.16 (3) | 3.030 (4) | 170 (3) |
| N1—H1B⋯O2ii | 0.97 (3) | 1.89 (3) | 2.852 (3) | 171 (3) |
| N6—H6A⋯N1iii | 0.91 (3) | 2.38 (3) | 3.162 (4) | 145 (3) |
| N6—H6B⋯O1ii | 0.95 (3) | 2.07 (3) | 3.015 (3) | 169 (3) |
Symmetry codes: (i) 
; (ii) 
; (iii) 
.
