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N'-(5-Bromo-2-methoxy-benzyl-idene)-3-hydroxy-benzohydrazide methanol hemisolvate.

ABSTRACT: The asymmetric unit of the title compound, C(15)H(13)BrN(2)O(3)·0.5CH(3)OH, contains two Schiff base mol-ecules and a methanol mol-ecule of crystallization. The dihedral angles between the benzene rings in the two mol-ecules are 23.8?(2) and 18.6?(2)°. In the crystal structure, mol-ecules are linked through inter-molecular N-H?O, O-H?O and O-H?N hydrogen bonds, forming a three-dimensional network.

SUBMITTER: Zhou Z

PROVIDER: S-EPMC2961683 | biostudies-literature | 2008 Jun

REPOSITORIES: biostudies-literature

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N'-(5-Bromo-2-methoxy-benzyl-idene)-3-hydroxy-benzohydrazide methanol hemisolvate.

Zhou Zhi Z

Acta crystallographica. Section E, Structure reports online 20080619 Pt 7

The asymmetric unit of the title compound, C(15)H(13)BrN(2)O(3)·0.5CH(3)OH, contains two Schiff base mol-ecules and a methanol mol-ecule of crystallization. The dihedral angles between the benzene rings in the two mol-ecules are 23.8 (2) and 18.6 (2)°. In the crystal structure, mol-ecules are linked through inter-molecular N-H⋯O, O-H⋯O and O-H⋯N hydrogen bonds, forming a three-dimensional network. ...[more]

PMID: 21202927

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N'-(5-Bromo-2-methoxy-benzyl-idene)-2-hydroxy-benzohydrazide.

Project description:The title Schiff base compound, C(15)H(13)BrN(2)O(3), is derived from the condensation of 5-bromo-2-methoxy-benzaldehyde with 2-hydroxy-benzohydrazide in an ethanol solution. The dihedral angle between the two aromatic rings is 6.9 (9)°. The meth-oxy group is coplanar with the attached ring [C-O-C-C = 3.1 (12)°]. An intra-molecular N-H⋯O hydrogen bond is observed. In the crystal structure, the mol-ecules are linked into chains along the [001] direction by inter-molecular O-H⋯N, O-H⋯O and C-H⋯O hydrogen bonds.

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N'-(2-Bromo-benzyl-idene)-3,4,5-tri-methoxy-benzohydrazide methanol solvate.

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N'-(5-Bromo-2-methoxy-benzyl-idene)-4-hydroxy-benzohydrazide methanol solvate.

Project description:In the title hydrazone compound, C(15)H(13)BrN(2)O(3)·CH(3)OH, the methanol solvate is linked to the benzohydrazide molecule through O-H?N and O-H?O hydrogen bonds. The benzohydrazide mol-ecule adopts an E configuration about the C=N double bond. The mol-ecule is twisted, with a dihedral angle between the two substituted benzene rings of 35.7?(2)°. In the crystal structure, mol-ecules are linked through inter-molecular N-H?O and O-H?O hydrogen bonds, forming layers parallel to the ac plane.

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N'-(3-Bromo-5-chloro-2-hydroxy-benzyl-idene)-2-methoxy-benzohydrazide.

Project description: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-H⋯O hydrogen bonds. In the crystal structure, mol-ecules are linked into zigzag chains running parallel to the c axis by inter-molecular C-H⋯O hydrogen bonds. The chains are further connected through aromatic π-π stacking inter-actions with centroid-centroid distances of 3.583 (4) Å.

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N'-(2-Hydroxy-benzyl-idene)-4-methoxy-benzohydrazide.

Project description:The title Schiff base compound, C(15)H(14)N(2)O(3), was derived from the condensation reaction of salicylaldehyde with 4-methoxy-benzohydrazide. The dihedral angle between the two benzene rings is 2.5 (2)°. In the crystal structure, mol-ecules are linked through inter-molecular N-H⋯O hydrogen bonds, forming chains running along the b axis.

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N'-(3-Bromo-5-chloro-2-hydroxy-benzyl-idene)-2-chloro-benzohydrazide methanol solvate.

Project description: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.

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N'-(3-Bromo-5-chloro-2-hydroxy-benzyl-idene)-3,4,5-trihydroxy-benzohydrazide methanol solvate.

Project description:The benzohydrazide mol-ecule of the title compound, C(14)H(10)BrClN(2)O(5)·CH(3)OH, is non-planar, the two aromatic rings at either side of the -C(=O)-NH-N=CH- unit being twisted by 5.9 (1)°. The benzohydrazide mol-ecule is linked to the solvent mol-ecule by an O-H⋯O hydrogen bond. Mol-ecules are connected by further O-H⋯O hydrogen bonds and an N-H⋯O link into a two-dimensional array.

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3-Bromo-N'-(2-hydroxy-benzyl-idene)benzohydrazide.

Project description:The title mol-ecule, C(14)H(11)BrN(2)O(2), displays a trans configuration about the C=N and C-N bonds. The dihedral angle between the two benzene rings is 18.5 (3)°. An intra-molecular O-H⋯N hydrogen bond is observed. In the crystal structure, the mol-ecules are linked into a chain along the c axis by N-H⋯O and C-H⋯O hydrogen bonds.

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