Table 1. Hydrogen-bond geometry (, ).
| DHA | DH | HA | D A | DHA |
|---|---|---|---|---|
| C6H6O3B i | 0.93 | 2.37 | 3.291(19) | 170 |
| C15H15BO2ii | 0.97 | 2.34 | 3.278(3) | 161 |
| C18AH18AO2iii | 0.96 | 2.41 | 3.310(10) | 156 |
Symmetry codes: (i) 
; (ii) 
; (iii) 
.
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