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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O3A—H3A⋯O2B i	0.84	1.85	2.685 (5)	174
N1A—H1A⋯O1B ii	0.88	2.06	2.933 (5)	170
O3B—H3B⋯O2A iii	0.84	1.82	2.654 (5)	170
N1B—H1B⋯O1A iv	0.88	2.04	2.848 (6)	152
C5B—H5BB⋯O1A v	0.95	2.54	3.464 (7)	164

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