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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1⋯O1Ai	0.84	1.87	2.6972 (12)	167
O1A—H1A⋯O1ii	0.84	1.89	2.7163 (12)	167

Symmetry codes: (i) ; (ii) .