Table 4. Hydrogen-bond geometry (, ) for (4) .
| DHA | DH | HA | D A | DHA |
|---|---|---|---|---|
| N10H10N32 | 0.90 | 1.95 | 2.838(11) | 171 |
| N10H10N31 | 0.90 | 2.66 | 3.460(13) | 148 |
| O1H11N32i | 0.84 | 2.67 | 3.295(19) | 132 |
| O1H12N30 | 0.85 | 2.38 | 3.08(2) | 140 |
Symmetry code: (i) 
.
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