Table 1. Hydrogen-bond geometry (, ).
| DHA | DH | HA | D A | DHA |
|---|---|---|---|---|
| C11H11ACl1 | 0.95 | 2.61 | 3.211(4) | 122 |
| C8H8ACl2i | 0.95 | 2.88 | 3.666(4) | 140 |
| C10H10ACl1ii | 0.95 | 2.88 | 3.733(4) | 149 |
Symmetry codes: (i) 
; (ii) 
.
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