title: 4-Amino-5-(2-hydroxy-benzyl-idene-amino)benzene-1,2-dicarbonitrile.
abstract: A new tetra-dentate unsymmetrical Schiff base, C(15)H(10)N(4)O, has been synthesized from 4,5-dicyano-o-phenyl-enediamine and o-vanillin in refluxing ethanol. The dihedral angle between the two benzene rings is 39.0 (1)°. There are intra-molecular O-H⋯N and weak inter-molecular N-H⋯O and N-H⋯N inter-actions.
authors.affiliation: Department of Pharmacy, Mudanjiang Medical University, Mudanjiang, 157011, People's Republic of China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Cheng
authors.forename: Jing
authors.initials: J
authors.lastname: Gao