title: 2,2'-[5-Bromo-o-phenyl-enebis(nitrilo-methyl-idyne)]diphenol.
abstract: A new tetra-dentate unsymmetrical Schiff base, C(20)H(15)BrN(2)O(2), has been synthesized from 4-bromo-o-phenyl-enediamine and salicylaldehyde in refluxing ethanol. The dihedral angles between the two hydroxy-phenyl rings and the bromo-o-phenyl-enediiminatoin group are 68.6 (1) and 8.7 (1)°; the dihedral angle between the two hydroxy-phenyl rings is 70.3 (1)°. There are two relatively strong intra-molecular of O-H⋯N hydrogen bonds.
authors.affiliation: Department of Pharmacy, Mudanjiang Medical University, Mudanjiang 157011, People's Republic of China.
authors.forename: Jing
authors.initials: J
authors.lastname: Gao
authors.forename: Yan
authors.initials: Y
authors.lastname: Cheng