Table 1. Experimental details.

Crystal data
Chemical formula	C12H8F2N2·C2H4O2
M r	278.26
Crystal system, space group	Triclinic, P
Temperature (K)	100
a, b, c (Å)	3.8047 (1), 11.0101 (4), 15.4968 (6)
α, β, γ (°)	79.535 (1), 89.223 (1), 82.880 (1)
V (Å3)	633.42 (4)
Z	2
Radiation type	Mo Kα
μ (mm−1)	0.12
Crystal size (mm)	0.35 × 0.28 × 0.21
Data collection
Diffractometer	Bruker APEXII CCD
No. of measured, independent and observed [I > 2σ(I)] reflections	11642, 2896, 2531
R int	0.083
(sin θ/λ)max (Å−1)	0.650
Refinement
R[F2 > 2σ(F2)], wR(F2), S	0.038, 0.110, 1.06
No. of reflections	2896
No. of parameters	185
No. of restraints	1
H-atom treatment	H atoms treated by a mixture of independent and constrained refinement
Δρmax, Δρmin (e Å−3)	0.39, −0.28

Computer programs: APEX2 (Bruker, 2005 ▸), SAINT (Bruker, 1998 ▸), SHELXT (Sheldrick, 2015a ▸), SHELXL (Sheldrick, 2015b ▸), X-SEED 4 (Barbour, 2020 ▸), CIFTAB (Sheldrick, 2008 ▸) and PLATON (Spek, 2020 ▸).