Table 7. Hydrogen-bond geometry (Å, °) for 4 .
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| N2—H2A⋯N1i | 0.89 (2) | 2.07 (2) | 2.9550 (15) | 178 (1) |
| N2—H2B⋯O1ii | 0.90 (2) | 1.97 (2) | 2.8588 (14) | 170 (1) |
Symmetry codes: (i)
; (ii)
.
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