(E)-N′-(3,5-Dibromo-2-hydroxybenzylidene)-4-hydroxybenzohydrazide monohydrate
نویسندگان
چکیده
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 through inter-molecular O-H⋯O and N-H⋯O hydrogen bonds, with the water mol-ecule serving as both donor and acceptor. As a result, layers are formed, which are approximately parallel to the bc plane.
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) ...
متن کامل3-Bromo-N′-(3,5-dibromo-2-hydroxybenzylidene)benzohydrazide methanol solvate
The title compound, C(14)H(9)Br(3)N(2)O(2)·CH(4)O, was prepared by the reaction of 3,5-dibromo-2-hydroxy-benzaldehyde and 3-bromo-benzohydrazide in methanol. The asymmetric unit of the crystal consists of a Schiff base mol-ecule and a methanol mol-ecule of crystallization. The dihedral angle between the two benzene rings is 5.5 (2)°. An intra-molecular O-H⋯N hydrogen bond is observed. In the cr...
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...
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 کامل(E)-N′-(3,5-Dibromo-2-hydroxybenzylidene)-2-nitrobenzohydrazide methanol solvate
In the title compound, C(14)H(9)Br(2)N(3)O(4)·CH(3)OH, the Schiff base mol-ecule adopts an E geometry with respect to the C=N bond and the benzene rings are oriented at a dihedral angle of 45.3 (2)°. An intra-molecular O-H⋯N hydrogen bond helps to establish the conformation. In the crystal, the methanol solvent mol-ecule is linked to the Schiff base mol-ecule through an O-H⋯O hydrogen bond and ...
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عنوان ژورنال:
دوره 64 شماره
صفحات -
تاریخ انتشار 2008