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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O2—H2⋯O1	0.86 (2)	2.21 (3)	2.728 (2)	118 (3)
O2—H2⋯O1i	0.86 (2)	2.08 (3)	2.802 (3)	141 (3)
O1—H1⋯N1	0.88 (2)	1.74 (2)	2.555 (2)	155 (3)
C6—H6⋯Cg2ii	0.93	2.85	3.645 (3)	144
C10—H10⋯Cg1ii	0.93	2.80	3.491 (3)	132

Symmetry codes: (i) ; (ii) . Cg1 and Cg2 are the centroids of the C1–C6 and C8–C13 rings, respectively.