Table 1. Hydrogen-bond geometry (Å, °).
Cg2 and Cg4 are the centroids of the N1/C8–C12 and N6/C13–C17 rings, respectively.
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| C3—H3⋯Cg2i | 0.93 | 2.94 | 3.765 (4) | 149 |
| C4—H4⋯Cg4 | 0.93 | 2.92 | 3.616 (3) | 133 |
Symmetry code: (i) 
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