Table 1. Hydrogen-bond geometry (, ).
Cg4 is the centroid of the methoxyphenyl ring (C16C21).
| DHA | DH | HA | D A | DHA |
|---|---|---|---|---|
| C17H17O1 | 0.93 | 2.60 | 3.172(3) | 120 |
| C12H12O1i | 0.93 | 2.37 | 3.103(2) | 135 |
| C21H21O4ii | 0.93 | 2.43 | 3.127(3) | 132 |
| C15H15Cg4iii | 0.93 | 2.75 | 3.674(2) | 173 |
Symmetry codes: (i)
; (ii)
; (iii)
.