5-(diethylamino)-2-[(Z)-(1-naphthylimino)methyl]phenol

In the title molecule, C21H22N2O, the angle between the mean planes of the 1-naphthylimino and 2-methylyphenyl groups is 63.3 (2)degrees. The two diethyl extensions from the 5-diethylamino group are twisted in a + and - antiperiplanar conformation. One of the ethyl arms is disordered over two conformations with occupancies of 0.644 (3) and 0.356 (3). The crystal packing is stabilized by intermolecular C-H center dot center dot center dot pi interactions between pi orbitals of the 1-naphthyl (I/II) rings and H atoms from a nearby benzene ring as well as from an ethyl C atom of an ethylamino group. The molecules are stacked along the b axis in alternate inverted chains with the 1-naphthyl rings obliquely parallel to the ab face of the unit cell. Intramolecular interactions between the hydroxyl H atom and the imino N atom provide additional conformational stability.