Table 2. Hydrogen-bond geometry (Å, °) for (II) .
Cg2 and Cg4 are the centroids of the C1–C6 ring.
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| N1—H1⋯O1i | 0.80 (4) | 2.32 (4) | 3.087 (3) | 161 (4) |
| C12—H12⋯Cg2ii | 0.95 | 2.75 | 3.500 (3) | 136 |
Symmetry codes: (i) 
; (ii) 
.
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