Table 1. Hydrogen-bond geometry (, ).
| DHA | DH | HA | D A | DHA |
|---|---|---|---|---|
| O5H5AO3i | 0.82(2) | 1.88(2) | 2.6958(17) | 170(3) |
| O5H5BO2ii | 0.86(2) | 1.90(2) | 2.7530(17) | 173(2) |
Symmetry codes: (i) 
; (ii) 
.
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