Table 2. Hydrogen-bond geometry (Å, °).

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O2—H2⋯O5i	0.82	1.74	2.534 (7)	164
O8—H8⋯O4ii	0.82	1.84	2.462 (7)	131
O9—H9⋯O6iii	0.82	2.00	2.744 (7)	150

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