title: 4,4'-Dibromo-2,2'-[m-phenyl-enebis(nitrilo-methanylyl-idene)]diphenol.
abstract: The title compound, C(20)H(14)Br(2)N(2)O(2), is a dibasic tetra-dentate Schiff base and reveals intra-molecular O-H⋯N hydrogen bonds between the hy-droxy O atoms and the imino N atoms. The dihedral angle between the central and terminal benzene rings is 39.7 (1)°. In the crystal, the compound is disposed about a crystallographic mirror plane parallel to the ac plane passing through the two central C atoms. The mol-ecules are stacked in columns along the c axis through π-π inter-actions, the shortest centroid-centroid distance being 3.872 (3) Å.
authors: School of Applied Chemical Engineering, The Research Institute of Catalysis, Chonnam National University, Gwangju 500-757,  Republic of Korea.
authors: Kwang
authors: K
authors: Ha