Crystal structure of 1-{(E)-[(3,4-dichlorophenyl) imino] methyl} naphthalen-2-ol

In the title compound, C17H11Cl2NO, the dihedral angle between the planes of the naphthalene ring system and the benzene ring is 28.88 (11) degrees. The main twist in the molecule occurs about the N-C-b (b = benzene ring) bond, as indicated by the C=N-C-b-C-b torsion angle of 31.0 (4) degrees. An intramolecular O-H center dot center dot center dot N hydrogen bond closes an S(6) ring. In the crystal, inversion dimers linked by pairs of very weak CH center dot center dot center dot O interactions generate R-2(2) (16) loops.