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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H11N⋯O2i	1.05 (4)	1.75 (4)	2.777 (4)	163 (3)
N1—H13N⋯O3ii	0.93 (4)	1.98 (4)	2.828 (4)	152 (3)
N1—H12N⋯O6i	0.93 (5)	2.08 (5)	2.879 (4)	143 (4)
O3—H3O⋯O5ii	0.80 (5)	1.72 (5)	2.519 (4)	174 (5)
O4—H4O⋯O6iii	0.82 (5)	1.75 (5)	2.566 (3)	173 (5)
N2—H22N⋯O1iv	0.86 (4)	1.95 (4)	2.781 (4)	161 (4)
N2—H21N⋯O2	1.02 (6)	1.77 (6)	2.769 (4)	165 (4)
N2—H23N⋯O5v	0.93 (6)	2.07 (6)	2.787 (5)	134 (5)
N2—H24N⋯O1vi	0.92 (5)	1.83 (5)	2.705 (5)	159 (4)

Symmetry codes: (i) ; (ii) ; (iii) ; (iv) ; (v) ; (vi) .