Crystal structure of 2-{[2-methoxy-5-(trifluoromethyl)phenyl]iminomethyl}-4-nitrophenol

Abstract

In the title compound, C15H11F3N2O4, the N=C bond of the central imine group adopts an E conformation. The dihedral angle between two benzene rings is 6.2 (2)degrees. There is an intramolecular bifurcated O-H center dot center dot center dot(N,O) hydrogen bond with S(6) and S(9) ring motifs. In the crystal, molecules are linked by C-H center dot center dot center dot O hydrogen bonds into a helical chain along the 31 screw axis parallel to c. The -CF3 group shows rotational disorder over two sites, with occupancies of 0.39 (2) and 0.61 (2).