Table 3. Hydrogen-bond geometry (Å, °).

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1⋯O6i	0.84	1.85	2.6855 (14)	174
O2—H2⋯O3ii	0.84	1.85	2.6847 (14)	169
O3—H3⋯O5iii	0.84	1.92	2.7511 (13)	173
O6—H6⋯O2iv	0.84	1.85	2.6796 (14)	170

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