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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1A—H1A⋯O3A i	0.91	2.13	2.928 (4)	146
N1A—H2A⋯O1A	0.91	2.07	2.607 (4)	116
N1A—H3A⋯O2B ii	0.91	1.87	2.767 (4)	168
N2A—H4A⋯O3B	0.88	2.00	2.883 (4)	177
N1B—H1B⋯O2A ii	0.91	1.79	2.695 (4)	179
N1B—H2B⋯O3B ii	0.91	1.89	2.721 (4)	151
N1B—H3B⋯O1D	0.91	1.98	2.838 (5)	156
O1D—H1D⋯O1A iii	0.86 (3)	1.87 (4)	2.695 (4)	159 (5)
O1C—H1C⋯O2B ii	0.86 (3)	1.85 (3)	2.693 (4)	167 (4)

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