Table 1. Hydrogen-bond geometry (, ).
Cg is the centroid of the C11C16 ring.
| DHA | DH | HA | D A | DHA |
|---|---|---|---|---|
| C2H2N2 | 0.95 | 2.50 | 2.815(2) | 99 |
| C4H4N4 | 0.95 | 2.46 | 2.778(2) | 100 |
| C8H8O1i | 0.95 | 2.59 | 3.529(2) | 170 |
| C16H16Cg ii | 0.95 | 2.81 | 3.669(2) | 151 |
| C22H22O1iii | 0.95 | 2.55 | 3.485(2) | 170 |
Symmetry codes: (i)
; (ii)
; (iii)
.