Table 1. Hydrogen-bond geometry (Å, °).
Cg1, Cg2, and Cg4 are the centroids of the C2–C7, C9/C10/C15–C17/C22 and C17–C22 rings, respectively. Approximative geometrical parameters are given for the weak N—H..π interaction.
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| O1—H1⋯O2i | 1.05 (4) | 1.58 (3) | 2.621 (3) | 172 (3) |
| N1—H1A⋯Cg1ii | 0.93 (3) | 3.49 | 4.140 | 129 |
| C4—H4⋯Cg4iii | 0.93 | 2.98 (1) | 3.752 (3) | 141 (1) |
| C6—H6⋯Cg1ii | 0.93 | 2.69 (1) | 3.410 (3) | 135 (1) |
| C16—H16⋯Cg4iv | 0.93 | 2.83 (1) | 3.644 (3) | 147 (1) |
| C18—H18⋯Cg2iv | 0.93 | 2.69 (1) | 3.452 (3) | 140 (1) |
Symmetry codes: (i) 
; (ii) 
; (iii) 
; (iv) 
.