title: (E)-4-[(4-Diethyl-amino-2-hy-droxy-benzyl-idene)amino]-benzonitrile.
abstract: The title compound, C(18)H(19)N(3)O, displays an E conformation with respect to the C=N double bond. The dihedral angle between the mean planes of the two benzene rings is 24.49 (3)°. An intra-molecular O-H⋯N hydrogen bond generates an S(6) ring. In the crystal, mol-ecules are linked by nonclassical inter-molecular C-H⋯O hydrogen bonds to form an infinite one-dimensional chain along [010], generating a C(8) motif.
authors.affiliation: Department of Chemical Engineering, Feng Chia University, 40724 Taichung,  Taiwan.
authors.forename: Ming-Jen
authors.initials: MJ
authors.lastname: Chang
authors.forename: Tzu-Chien
authors.initials: TC
authors.lastname: Fang
authors.forename: Hsing-Yang
authors.initials: HY
authors.lastname: Tsai
authors.forename: Ming-Hui
authors.initials: MH
authors.lastname: Luo
authors.forename: Kew-Yu
authors.initials: KY
authors.lastname: Chen