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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O7—H7A⋯O2iii	0.85	2.19	2.862 (5)	136
O7—H7A⋯O3i	0.85	2.30	2.858 (5)	123
O7—H7B⋯O6iv	0.85	2.15	2.959 (6)	158
O8—H8A⋯O1v	0.85	1.98	2.787 (4)	160
O8—H8B⋯O2ii	0.85	1.85	2.692 (5)	170

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