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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O2—H2O⋯N7i	0.92	1.89	2.801 (3)	170
O4—H4O⋯O5ii	0.93	1.77	2.675 (3)	164
O5—H5P⋯O3	0.91	1.93	2.811 (3)	161
O5—H5O⋯O6	0.86	2.08	2.889 (3)	157
O6—H6O⋯N4iii	0.92	2.12	2.934 (3)	148
O6—H6P⋯N8ii	0.93	2.10	2.971 (3)	154

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