Table 1. Hydrogen-bond geometry (, ).
| DHA | DH | HA | D A | DHA |
|---|---|---|---|---|
| N2H2O27i | 0.86 | 2.08 | 2.756(3) | 135 |
| C24H24ACl1ii | 0.96 | 2.93 | 3.823(3) | 156 |
Symmetry codes: (i) 
; (ii) 
.
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