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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1n⋯O1i	0.91	1.83	2.736 (2)	176
N1—H2n⋯O1ii	0.91	1.85	2.762 (2)	176
N1—H3n⋯O2	0.91	1.91	2.814 (2)	175
O3—H1o⋯O2i	0.87	1.74	2.568 (2)	159

Symmetry codes: (i) ; (ii) .