title: N,N'-Bis(3-methoxy-benzyl-idene)ethane-1,2-diamine.
abstract: The mol-ecule of the title bidentate Schiff base ligand, C(18)H(20)N(2)O(2), has twofold crystallographic rotation symmetry, giving one half-mol-ecule per asymmetric unit. It adopts a twisted E configuration with respect to the azomethine C=N bond. The imino group is coplanar with the aromatic ring. The dihedral angle between the two benzene rings is 69.52 (5)°. The meth-oxy group is coplanar with the benzene ring, as indicated by the C-O-C-C torsion angle of -179.56 (8)°. In the unit cell, mol-ecules are linked together by inter-molecular C-H⋯O hydrogen bonds, forming chains along the a axis; these chains are further stacked down the b axis by both inter-molecular C-H⋯O and C-H⋯π inter-actions.
authors.forename: Hoong-Kun
authors.initials: HK
authors.lastname: Fun
authors.forename: Valiollah
authors.initials: V
authors.lastname: Mirkhani
authors.forename: Akbar Rostami
authors.initials: AR
authors.lastname: Vartooni