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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1A—H1N⋯O1W	0.91 (4)	2.10 (4)	2.999 (3)	169 (3)
N1A—H2N⋯O1W i	0.97 (3)	2.15 (3)	3.102 (3)	166 (2)
O1W—H1W⋯N1A ii	0.85 (5)	2.04 (5)	2.871 (3)	167 (4)
O1W—H2W⋯N1B	0.89 (3)	2.07 (3)	2.953 (3)	174 (3)

Symmetry codes: (i) ; (ii) .