N′-(5-Bromo-2-hydroxybenzylidene)-4-chlorobenzohydrazide
نویسندگان
چکیده
The title Schiff base, C(14)H(10)BrClN(2)O(2), exists in a trans configuration with respect to the C=N bond and the dihedral angle between the two benzene rings is 0.8 (2)°. There is an intra-molecular O-H⋯N hydrogen bond in the mol-ecule, which generates an S(6) loop. In the crystal, inter-molecular N-H⋯O hydrogen bonds link adjacent mol-ecules into extended chains propagating along the c-axis direction.
منابع مشابه
N′-(3-Bromo-5-chloro-2-hydroxybenzylidene)-2-chlorobenzohydrazide methanol solvate
In the title compound, C(14)H(9)BrCl(2)N(2)O(2)·CH(4)O, the dihedral angle between the two benzene rings is 49.2 (2)° and an intra-molecular O-H⋯N hydrogen bond occurs. In the crystal struture, mol-ecules are linked by O-H⋯O and N-H⋯O hydrogen bonds.
متن کامل(E)-3-Bromo-N′-(5-bromo-2-hydroxybenzylidene)benzohydrazide
The title compound, C(14)H(10)Br(2)N(2)O(2), was synthesized by the reaction of 5-bromo-salicylaldehyde with an equimolar quantity of 3-bromo-benzohydrazide in methanol. The dihedral angle between the two benzene rings is 10.5 (4)°. In the crystal structure, mol-ecules are linked through inter-molecular N-H⋯O hydrogen bonds to form chains parallel to the c axis, and an intra-molecular O-H⋯N int...
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The title Schiff base compound, C(15)H(12)BrClN(2)O(2), crystallizes with two independent mol-ecules in the asymmetric unit. The mol-ecules adopt an E configuration with respect to the C=N double bond. The dihedral angles between the benzene rings are 24.4 (2) and 9.4 (2)° in the two mol-ecules. The crystal structure is stabilized by inter-molecular N-H⋯O hydrogen bonds, forming chains running ...
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The title compound, C(15)H(12)BrClN(2)O(3), was obtained by the condensation reaction between 3-bromo-5-chloro-2-hydroxy-benzaldehyde and 2-methoxy-benzohydrazide. The mol-ecule is essentially planar, with a dihedral angle between the two benzene rings of 4.7 (2)°, and displays an E configuration about the C=N double bond. The mol-ecular conformation is stabilized by intramolecular O-H⋯N and N-...
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The title compound, C(15)H(12)BrClN(2)O(2), was synthesized by the condensation of 1-(5-bromo-2-hy-droxy-phen-yl)ethanone with 2-chloro-benzohydrazide in anhydrous ethanol. The Schiff base mol-ecule displays a trans configuration with respect to the C=N double bond. The dihedral angle between the two benzene rings is 13.74 (3)°. The mol-ecular conformation is stabilized by an intra-molecular O-...
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