title: Zwitterionic 1-{(E)-[(2-methyl-phen-yl)iminium-yl]meth-yl}naphthalen-2-olate.
abstract: The title Schiff base, C18H15NO, crystallizes in its zwitterionic form and an N-H⋯O hydrogen bond closes an S(6) ring. The dihedral angle between the aromatic ring systems is 36.91 (10)°. Weak aromatic π-π stacking occurs in the crystal [minimum centroid-centroid separation = 3.7771 (15) Å].
authors.affiliation: Laboratoire de Chimie des Matériaux, Faculté des Sciences Exactes, Département de Chimie, Université Constantine 1, Algeria.
authors.forename: Ammar
authors.initials: A
authors.lastname: Khelifa Baghdouche
authors.affiliation: Laboratoire de Chimie des Matériaux, Faculté des Sciences Exactes, Département de Chimie, Université Constantine 1, Algeria.
authors.forename: Salima
authors.initials: S
authors.lastname: Mosbah
authors.affiliation: Laboratoire de Chimie des Matériaux, Faculté des Sciences Exactes, Département de Chimie, Université Constantine 1, Algeria.
authors.forename: Youghourta
authors.initials: Y
authors.lastname: Belhocine
authors.affiliation: Laboratoire de Chimie des Matériaux, Faculté des Sciences Exactes, Département de Chimie, Université Constantine 1, Algeria.
authors.forename: Leïla
authors.initials: L
authors.lastname: Bencharif