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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1⋯O4i	0.84 (2)	1.99 (2)	2.7615 (18)	152.8 (18)
N2—H2⋯O1ii	0.89 (2)	2.03 (2)	2.8776 (18)	157.4 (19)
N2—H2⋯O4iii	0.89 (2)	2.55 (2)	2.9850 (18)	111.2 (16)
C16—H16⋯F3i	0.93	2.39	3.171 (2)	142
C18—H18⋯O2iv	0.93	2.47	3.327 (3)	153

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