(E)-N′-(5-Bromo-2-methoxybenzylidene)isonicotinohydrazide
نویسنده
چکیده
The asymmetric unit of the title compound, C(14)H(12)BrN(3)O(2), contains two independent mol-ecules in which the dihedral angles between the benzene ring and the pyridine ring are 24.4 (6) and 23.7 (6)°. The mol-ecules exist in a trans configuration with respect to the central methyl-idene units. In the crystal, mol-ecules are linked through inter-molecular N-H⋯O hydrogen bonds, forming chains along the a axis.
منابع مشابه
N′-(5-Bromo-2-hydroxy-3-methoxybenzylidene)isonicotinohydrazide
The title compound, C(14)H(12)BrN(3)O(3), was prepared by reaction of 5-bromo-3-methoxy-salicylaldehyde and isonicotinohydrazide in methanol. The mol-ecule is not planar and adopts a trans configuration with respect to the C=N bond. There is an intra-molecular O-H⋯N hydrogen bond in the mol-ecule. The dihedral angle between the benzene and pyridine rings is 12.2 (2)°. In the crystal structure, ...
متن کامل2′-(3-Bromo-5-chloro-2-hydroxybenzylidene)isonicotinohydrazide methanol solvate
The title Schiff base compound, C(13)H(9)BrClN(3)O(2)·CH(4)O, was derived from the condensation reaction of 3-bromo-5-chloro-salicylaldehyde with isonicotinohydrazide. The dihedral angle between the benzene and pyridine rings is 5.9 (2)°. In the crystal structure, mol-ecules are linked through N-H⋯O, O-H⋯O, and O-H⋯Br inter-molecular hydrogen bonds, forming dimers and chains. There is also an i...
متن کاملBenzyl (E)-3-(2-bromo-5-methoxybenzylidene)dithiocarbazate
The title compound, C(16)H(15)BrN(2)OS(2), was obtained from the condensation reaction of benzyl dithio-carbazate and 2-bromo-5-meth-oxy-lbenzaldehyde. In the mol-ecule, the bromo-meth-oxy-phenyl ring and dithio-carbazate fragment are located on the opposite sides of the C=N double bond, showing the E conformation. The dithio-carbazate fragment is approximately planar (r.m.s deviation 0.0187 Å)...
متن کامل(E)-N′-(5-Bromo-2-hydroxy-3-methoxybenzylidene)-2-hydroxybenzohydrazide monohydrate
The organic molecule of the title hydrate, C(15)H(13)BrN(2)O(4)·H(2)O, is roughly planar, with a mean deviation of 0.0939 (2) Å. The dihedral angle between the two aromatic rings is 8.2 (3)°. Intra-molecular O-H⋯N and O-H⋯O hydrogen bonds are observed. In the crystal, N-H⋯O(water) and O(water)-H⋯O hydrogen bonds lead to a three-dimensional network.
متن کامل(E)-N′-(5-Bromo-2-methoxybenzylidene)-2-chlorobenzohydrazide
In the title compound, C(15)H(12)BrClN(2)O(2), the dihedral angle between the two substituted aromatic rings is 77.8 (3)°. The mol-ecule exists in a trans conformation with respect to the methyl-idene unit. In the crystal structure, inversion dimers linked by pairs of N-H⋯O hydrogen bonds generate R(2) (8)(8) loops.
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عنوان ژورنال:
دوره 67 شماره
صفحات -
تاریخ انتشار 2011