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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N2—H2⋯N1	0.86	2.19	2.629 (2)	112
C3—H3⋯O1i	0.93	2.55	3.410 (2)	154
C18—H18⋯O2ii	0.96	2.49	3.444 (2)	171
N2—H2⋯Br1	0.86	2.58	3.081 (1)	118

Symmetry codes: (i) ; (ii) .