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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1A⋯O4i	0.86	1.81	2.664 (5)	173
N2—H2A⋯O3	0.86	1.99	2.748 (5)	146
N2—H2A⋯O9ii	0.86	2.42	3.020 (5)	127
N3—H3A⋯O7ii	0.86	2.09	2.867 (6)	150
N4—H4A⋯O2iii	0.86	2.00	2.834 (6)	165

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