Table 1. Hydrogen-bond geometry (Å, °).

Cg2 is the centroid of the C1–C6 phenyl ring.

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1⋯O2i	0.86	2.07	2.8698 (17)	155
C8—H8⋯O1ii	0.93	2.58	3.4725 (18)	161
C16—H16⋯Cg2iii	0.93	2.92	3.722 (2)	145

Symmetry codes: (i) ; (ii) ; (iii) .