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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N3—H3A⋯O1Wi	0.86	2.22	2.926 (2)	139
N3—H3A⋯O1	0.86	2.61	3.048 (2)	113
N5—H5⋯O2ii	0.86	2.10	2.945 (2)	168
N7—H7⋯O2ii	0.86	2.08	2.838 (2)	146
N7—H7⋯O3	0.86	2.42	2.906 (2)	116
O1W—H1WA⋯O4iii	0.844 (17)	1.967 (18)	2.797 (2)	168 (3)
O1W—H1WB⋯O3iv	0.828 (17)	2.204 (19)	3.009 (2)	164 (3)

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