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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1⋯O1i	0.88	2.39	2.940 (5)	121
N1′—H1′⋯O2	0.88	2.29	3.104 (4)	153

Symmetry code: (i) .