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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N2—H2⋯O1i	0.87 (1)	2.05 (1)	2.909 (1)	171 (1)
O1w—H11⋯N1	0.83 (1)	2.12 (1)	2.945 (1)	170 (2)
O1w—H13⋯O1wii	0.84 (1)	1.98 (1)	2.803 (2)	167 (5)

Symmetry codes: (i) ; (ii) .