Table 1. Hydrogen-bond geometry (Å, °).

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1W—H1WB⋯O2	0.90	1.91	2.774 (2)	160
O1W—H1WA⋯O2i	0.90	1.81	2.694 (2)	168
O2W—H2WB⋯O1W	0.90	1.93	2.8037 (19)	164
O2W—H2WA⋯O1ii	0.90	1.89	2.777 (2)	168
N2—H2⋯O1i	0.93	2.25	3.030 (2)	141
N1—H1⋯O1Wiii	0.93	2.12	2.982 (2)	153

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