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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1⋯N4	0.82	1.93	2.643 (8)	145
N1—H1A⋯Br2	0.91 (8)	2.69 (7)	3.081 (7)	107 (6)
O2—H2⋯O9i	0.82	1.85	2.660 (15)	167
O3—H3⋯N2	0.82	1.93	2.661 (9)	148
N3—H3B⋯Br4	0.91 (8)	2.77 (8)	3.097 (7)	103 (5)
O4—H4⋯O6ii	0.82	2.13	2.721 (10)	129
O5—H5⋯N6	0.82	1.95	2.650 (9)	143
N5—H5B⋯Br5	0.90 (6)	2.77 (8)	3.110 (7)	104 (6)
O6—H6⋯O8iii	0.82	1.95	2.735 (9)	160
O7—H7⋯N8	0.85 (6)	1.99 (8)	2.717 (9)	142 (6)
N7—H7B⋯Br7	0.90 (6)	2.61 (8)	3.100 (7)	115 (6)
O8—H8⋯O2iv	0.84 (9)	1.90 (8)	2.713 (11)	162 (8)
O9—H9⋯O10v	0.82	2.18	2.94 (2)	156

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