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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1A⋯O4i	0.82	1.97	2.725 (3)	153
O4—H4B⋯O1ii	0.82	1.95	2.706 (3)	153

Symmetry codes: (i) ; (ii) .