N′-(5-Chloro-2-hydroxybenzylidene)-4-methoxybenzohydrazide
نویسنده
چکیده
The asymmetric unit of the title compound, C(15)H(13)ClN(2)O(3), contains two independent hydrazone mol-ecules. Each mol-ecule adopts an E configuration with respect to the methyl-idene unit and forms an intra-molecular O-H⋯N hydrogen bond. The principal difference between the two unique mol-ecules is the relative orientation of the two benzene rings, the dihedral angles between them being 4.0 (3) and 65.9 (3)°, respectively. In the crystal, mol-ecules are linked through N-H⋯O hydrogen bonds, forming chains running along the c axis.
منابع مشابه
N′-(5-Chloro-2-hydroxybenzylidene)-2-methoxybenzohydrazide
The title Schiff base compound, C(15)H(13)ClN(2)O(3), was prepared by the reaction of equimolar quanti-ties of 5-chloro-2-hy-droxy-benzaldehyde with 2-meth-oxy-benzohydrazide in a methanol solution. The dihedral angle between the two benzene rings is 20.6 (3)°. An intra-molecular O-H⋯N hydrogen bond may influence the mol-ecular conformation. In the crystal structure, mol-ecules form chains alon...
متن کامل(E)-N′-(5-Bromo-2-hydroxybenzylidene)-4-hydroxy-3-methoxybenzohydrazide methanol solvate
In the title compound, C(15)H(13)BrN(2)O(4)·CH(4)O, the two benzene rings form a dihedral angle of 3.2 (2)°. An intra-molecular O-H⋯N hydrogen bond is observed. In the crystal structure, mol-ecules are linked through O-H⋯O and N-H⋯O hydrogen bonds, forming a two-dimensional network parallel to (10).
متن کاملN′-(4-Hydroxybenzylidene)-3-methoxybenzohydrazide
In the title compound, C(15)H(14)N(2)O(3), the dihedral angle between the two benzene rings is 47.9 (3)°. In the crystal, mol-ecules are linked through N-H⋯O, O-H⋯O and O-H⋯N hydrogen bonds, forming layers parallel to the ab plane.
متن کامل(E)-N′-(5-Bromo-2-hydroxybenzylidene)-3-methoxybenzohydrazide
In the title compound, C(15)H(13)BrN(2)O(3), the two benzene rings form a dihedral angle of 16.9 (2)°. An intra-molecular O-H⋯N hydrogen bond affects the mol-ecular conformation. In the crystal structure, mol-ecules are linked through N-H⋯O hydrogen bonds into chains running along the a axis.
متن کامل(E)-N′-(5-Bromo-2-hydroxybenzylidene)-2-methoxybenzohydrazide
In the title compound, C(15)H(13)BrN(2)O(3), the mol-ecule adopts an E configuration about the C=N bond and the two benzene rings form a dihedral angle of 20.3 (3)°. In the mol-ecule, there are two intra-molecular hydrogen bonds, viz. O-H⋯N and N-H⋯O, involving the hy-droxy substituent, the meth-oxy O atom and the hydrazide NH group and N atom. In the crystal structure, mol-ecules are linked th...
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