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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1A⋯O1i	0.88	1.94	2.802 (3)	169
N4—H4A⋯O2i	0.90	1.89	2.791 (3)	176
O1W—H1W⋯O4ii	0.81	1.90	2.683 (2)	162
O1W—H2W⋯O2iii	0.79	1.98	2.751 (3)	164
O3—H3A⋯O1	0.93 (3)	1.52 (3)	2.434 (3)	165 (4)

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