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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O9—H9A⋯O3ii	0.84	2.02	2.790 (3)	153
O9—H9B⋯O1ii	0.74	2.45	3.015 (3)	134
O10—H10A⋯O7i	0.84	2.24	2.998 (3)	150
O10—H10B⋯O5i	0.82	1.95	2.741 (3)	161
O11—H11A⋯O3i	0.84	2.17	2.931 (3)	151
O11—H11B⋯O1i	0.84	1.93	2.751 (3)	169

Symmetry codes: (i) ; (ii) .