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| DHA | DH | HA | D A | DHA |
|---|---|---|---|---|
| C1H1BCl1i | 0.99 | 2.80 | 3.7145(15) | 154 |
| C6H6Cl1ii | 0.95 | 2.75 | 3.6410(15) | 157 |
| N1H1CCl1iii | 0.91 | 2.23 | 3.1239(9) | 168 |
| N1H1DCl1iv | 0.91 | 2.23 | 3.1239(9) | 168 |
| N4H4AN2 | 0.90(2) | 2.09(2) | 2.9748(15) | 167(2) |
| N4H4BCl1 | 0.93(2) | 2.32(2) | 3.2362(12) | 170(2) |
Symmetry codes: (i) 
; (ii) 
; (iii) 
; (iv) 
.
