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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1⋯O2	0.85	2.12	2.965 (10)	172
O2—H2A⋯O5	0.85	2.08	2.838 (7)	148
O2—H2B⋯O2i	0.85	2.41	3.246 (10)	168
O6—H6A⋯O3ii	0.85	2.14	2.807 (3)	135
O6—H6B⋯N4iii	0.85	2.07	2.861 (3)	154
N2—H2⋯O5	0.83	2.01	2.733 (3)	144

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