title: 3-(4-Chloro-phenyl-diazen-yl)-1-methyl-1,4,5,6-tetra-hydro-pyridine.
abstract: The title compound, C(12)H(14)ClN(3), represents the planar azoenamine tautomer. The benzene ring forms a dihedral angle of 2.5 (1)° with the azoenamine group. Electron delocalization is indicated by the values of the bond lengths in the chain. The tetra-hydro-pyridine ring adopts a half-chair conformation and the dihedral angle between the least-squares plane defined by the five coplanar C atoms and the azoenamine unit is 2.0 (1)°, while the envelope-flap C atom lies out of this plane by 0.579 (2) Å. The mol-ecular packing is governed by van der Waals inter-actions through the stacking of adjacent mol-ecules, resulting in a two-dimensional sheet structure.
authors.forename: Fiorella
authors.initials: F
authors.lastname: Meneghetti
authors.forename: Gabriella
authors.initials: G
authors.lastname: Bombieri
authors.forename: Michele
authors.initials: M
authors.lastname: Tonelli