1,3-Bis(4-fluorophenyl)-N,N′-(propane-1,3-diyl-idene)dihydroxyl-amine

Abstract

The title compound, C 15H 12F 2N 2O 2, crystallizes with two molecules (A and B) in the asymmetric unit. Both aromatic rings of both molecules are disordered over two orientations [occupancy ratios of 0.768 (3):0.232 (3) and 0.770 (3):0.230 (3) for molecule A and 0.789 (3):0.211 (3) and 0.789 (3):0.211 (3) for molecule B]. The dihedral angles between the planes of the major and minor components of the disordered aromatic rings are 72.0 (4) and 71.2 (4)° for molecule A, and 70.2 (4) and 71.5 (2)° for molecule B. In the crystal, both molecules form inversion dimers with R 22(6) ring motifs via pairs of inter-molecular O - H⋯N hydrogen bonds. The dimers are linked, forming zigzag C(7) chains along the c axis. Weak C - H⋯π interactions help to consolidate the packing.