N′-(5-Chloro-2-hydroxybenzylidene)-4-hydroxybenzohydrazide
نویسنده
چکیده
The title Schiff base compound, C(14)H(11)ClN(2)O(3), was prepared by the reaction of 5-chloro-salicylaldehyde and 4-hydroxy-benzohydrazide. The mol-ecule exists in a trans configuration with respect to the methyl-idene group. The dihedral angle between the two benzene rings is 40.1 (2)°. An intra-molecular O-H⋯N hydrogen bond helps to stabilize the mol-ecular conformation. In the crystal structure, mol-ecules are linked into a three-dimensional network by inter-molecular N-H⋯O and O-H⋯O hydrogen bonds.
منابع مشابه
N′-(5-Bromo-2-hydroxybenzylidene)-3-hydroxybenzohydrazide
The asymmetric unit of the title compound, C(14)H(11)BrN(2)O(3), contains two crystallographically independent mol-ecules with slightly different conformations with respect to the aromatic rings; the dihedral angles between the two benzene rings in the two mol-ecules are 55.0 (7) and 16.3 (7)°. In the crystal structure, mol-ecules are linked through inter-molecular N-H⋯O, O-H⋯O and O-H⋯N hydrog...
متن کامل(E)-N′-(3,5-Dibromo-2-hydroxybenzylidene)-4-hydroxybenzohydrazide monohydrate
The title compound, C(14)H(10)Br(2)N(2)O(3)·H(2)O, was synthesized by the reaction of 3,5-dibromo-2-hydroxy-benzaldehyde with an equimolar amount of 4-hydroxy-benzohydrazide in methanol. The structure comprises a Schiff base unit and a water mol-ecule of crystallization. The dihedral angle between the benzene rings in the Schiff base is 1.3 (3)°. In the crystal structure, mol-ecules are linked ...
متن کامل(E)-N′-(4-Hydroxybenzylidene)-4-hydroxybenzohydrazide methanol solvate
The title compound, C(14)H(12)N(2)O(3)·CH(4)O, consists of a Schiff base mol-ecule and a methanol mol-ecule of crystallization. The Schiff base mol-ecule is nearly planar, the dihedral angle between the planes of the two benzene rings being 7.2 (2)°. The mol-ecule exists in the trans configuration with respect to the methyl-idene unit. In the crystal structure, the Schiff base and methanol mol-...
متن کاملN′-(3,5-Di-tert-butyl-4-hydroxybenzylidene)-2-hydroxybenzohydrazide methanol solvate
The asymmetric unit of the title compound, C(22)H(28)N(2)O(3)·CH(4)O, consists of two independent Schiff base mol-ecules and two independent methanol solvent mol-ecules. In one Schiff base mol-ecule, the 2-hydr-oxy group forms an intra-molecular hydrogen bond with the amide O atom, whereas in the other Schiff base mol-ecule, the 2-hydr-oxy-substituted benzene ring is oriented so that the 2-hydr...
متن کامل4-Chloro-N′-(5-chloro-2-hydroxybenzylidene)benzohydrazide
The mol-ecule of the title compound, C(14)H(10)Cl(2)N(2)O(2), displays a trans configuration with respect to the C=N double bond and has an intramolecular O-H⋯N hydrogen bond. The dihedral angle between the two benzene rings is 1.4 (2)°. In the crystal structure, mol-ecules are linked through inter-molecular N-H⋯O hydrogen bonds, forming chains running along the a direction.
متن کامل