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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N2—H2A⋯O21	0.91	2.03	2.858 (4)	150
N2—H2B⋯O111i	0.91	1.88	2.788 (4)	173
N2—H2C⋯O31ii	0.91	1.98	2.879 (4)	169
O112—H112⋯O212	0.84	2.12	2.773 (4)	134
O112—H112⋯O41	0.84	2.49	2.942 (4)	115
O212—H212⋯O32ii	0.84	1.89	2.721 (4)	168
O312—H312⋯O112ii	0.84	1.92	2.704 (4)	156
N1—H1A⋯O312iii	0.91	1.83	2.738 (4)	176
N1—H1B⋯O42ii	0.91	2.05	2.872 (4)	150
N1—H1C⋯O22	0.91	1.98	2.862 (4)	164
O111—H111⋯O211iv	0.84	1.89	2.681 (3)	157
O211—H211⋯O311	0.84	2.13	2.774 (4)	134
O211—H211⋯O12ii	0.84	2.54	2.960 (4)	112
O311—H311⋯O11	0.84	1.88	2.714 (4)	170

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