Table 1. Hydrogen-bond geometry (, ).
Cg is the centroid of the C4C9 ring.
| DHA | DH | HA | D A | DHA |
|---|---|---|---|---|
| O2H2O1 | 0.84 | 2.28 | 2.7262(14) | 113 |
| C11H11O3 | 0.95 | 2.32 | 2.6724(17) | 101 |
| C15H15O2 | 0.95 | 2.22 | 2.8508(18) | 123 |
| O2H2O1i | 0.84 | 1.96 | 2.7104(14) | 148 |
| C7H7Cg ii | 0.95 | 2.59 | 3.407(10) | 144 |
Symmetry codes: (i)
; (ii)
.