Table 1. Hydrogen-bond geometry (, ).
| DHA | DH | HA | D A | DHA |
|---|---|---|---|---|
| O1H1O2i | 0.84 | 1.80 | 2.6285(15) | 171 |
| C1H1AF2 | 0.99 | 2.48 | 3.455(2) | 168 |
| C1H1AF3 | 0.99 | 2.50 | 3.1656(19) | 124 |
| C22H22F4ii | 0.95 | 2.51 | 3.3924(18) | 155 |
Symmetry codes: (i) 
; (ii) 
.
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