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

Cg1 is the centroid of the C1–C6 ring.

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1⋯N1i	0.97 (3)	1.83 (3)	2.791 (4)	172 (4)
C2—H2⋯Cg1ii	0.95	2.83	3.58 (3)	137
C5—H5⋯Cg1iii	0.95	2.79	3.512 (3)	134

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