(E)-N′-(3,5-Dibromo-2-hydroxybenzylidene)nicotinohydrazide
نویسندگان
چکیده
In the title Schiff base compound, C(13)H(9)Br(2)N(3)O(2), there is an intra-molecular O-H⋯N hydrogen bond involving the hydroxyl substituent and the adjacent hydrazine N atom. The mol-ecule is almost planar, the dihedral angle between the benzene ring and the pyridine ring being 5.7 (2)°. In the crystal structure, symmetry-related mol-ecules are linked via N-H⋯O hydrogen bonds, forming chains propagating in [001].
منابع مشابه
(E)-N′-(3,5-Dibromo-2-hydroxybenzylidene)-2-methoxybenzohydrazide
The title compound, C(15)H(12)Br(2)N(2)O(3), was synthesized by the reaction of 3,5-dibromo-2-hydroxy-benzaldehyde with an equimolar quantity of 2-methoxy-benzohydrazide in methanol. The dihedral angle between the two benzene rings is 3.4 (2)° and intra-molecular O-H⋯N and N-H⋯O hydrogen bonds are observed in the mol-ecule. The crystal studied was an inversion twin with a 0.513 (19):0.487 (19) ...
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The title Schiff base compound, C(13)H(8)Cl(3)N(3)O(2), was synthesized by the condensation reaction of 3,5-dichloro-salicyl-aldehyde with 6-chloro-nicotinic acid hydrazide in 95% ethanol. The mol-ecule is nearly planar, with a dihedral angle of 1.9 (2)° between the aromatic ring planes, and an intra-molecular O-H⋯N hydrogen bond is observed. In the crystal, the mol-ecules are connected by inte...
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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 ...
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متن کامل2-Chloro-N′-(3,5-dibromo-2-hydroxybenzylidene)benzohydrazide methanol solvate
The title Schiff base compound, C(14)H(9)Br(2)ClN(2)O(2)·CH(4)O, was derived from the condensation reaction of 3,5-dibromo-salicylaldehyde with 2-chloro-benzohydrazide. The dihedral angle between the two benzene rings is 48.2 (2)°. In the crystal structure, mol-ecules are linked through O-H⋯O and N-H⋯O inter-molecular hydrogen bonds, forming layers parallel to the bc plane. There is also an O-H...
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