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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C4B—H4BA⋯N3B	0.99	2.58	3.469 (10)	149
N2A—H1NA⋯O1Bi	0.85	2.03	2.870 (6)	168
N2B—H1NB⋯O1Aii	0.85	2.05	2.894 (6)	171
C1A—H1AB⋯O1Bi	0.99	2.41	3.362 (7)	162
C1B—H1BB⋯O1Aii	0.99	2.44	3.352 (6)	153
C4A—H4AB⋯N3Biii	0.99	2.49	3.476 (9)	173
C19A—H19A⋯N3Biii	0.99	2.57	3.513 (11)	160

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