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2-Hy-droxy-N'-(4-hy-droxy-3-nitro-benzyl-idene)benzohydrazide.

ABSTRACT: The title compound, C(14)H(11)N(3)O(5), crystallized with two independent mol-ecules per asymmetric unit. Each mol-ecule assumes an E configuration with respect to the methyl-idene unit. Intra-molecular O-H?O and N-H?O hydrogen bonds are present in each mol-ecule and they are linked by an O-H?O hydrogen bond. The dihedral angles between the mean planes of the two benzene rings are 4.45?(16) and 1.7?(2)° in the two mol-ecules. The crystal structure is stabilized by inter-molecular O-H?O and N-H?O hydrogen bonds.

SUBMITTER: Zhang Z

PROVIDER: S-EPMC3051712 | biostudies-literature | 2011 Jan

REPOSITORIES: biostudies-literature

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2-Hy-droxy-N'-(4-hy-droxy-3-nitro-benzyl-idene)benzohydrazide.

Zhang Zhen Z

Acta crystallographica. Section E, Structure reports online 20110108 Pt 2

The title compound, C(14)H(11)N(3)O(5), crystallized with two independent mol-ecules per asymmetric unit. Each mol-ecule assumes an E configuration with respect to the methyl-idene unit. Intra-molecular O-H⋯O and N-H⋯O hydrogen bonds are present in each mol-ecule and they are linked by an O-H⋯O hydrogen bond. The dihedral angles between the mean planes of the two benzene rings are 4.45 (16) and 1.7 (2)° in the two mol-ecules. The crystal structure is stabilized by inter-molecular O-H⋯O and N-H⋯O ...[more]

PMID: 21522991

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4-Hy-droxy-N'-(4-hy-droxy-3-nitro-benzyl-idene)benzohydrazide.

Project description:The mol-ecule of the title compound, C(14)H(11)N(3)O(5), assumes an E configuration with respect to the methyl-idene unit. An intra-molecular O-H⋯O hydrogen bond is present in the mol-ecule. The dihedral angle between the mean planes of the two benzene rings is 5.46 (15)°. The crystal structure is stabilized by inter-molecular O-H⋯O, O-H⋯N, and N-H⋯O hydrogen bonds.

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N'-(3-Hy-droxy-benzyl-idene)-4-nitro-benzohydrazide.

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Project description:The title compound, C(14)H(11)N(3)O(4), was prepared by the reaction of 3-nitro-benzohydrazide with 3-hy-droxy-benzalde-hyde. The mol-ecule adopts an E configuration about the C=N bond. The dihedral angle between the two benzene rings is 32.3?(2)°. In the crystal, the mol-ecules are linked through inter-molecular N-H?O, O-H?N, and O-H?O hydrogen bonds, forming chains in the a-axis direction.

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Project description:The mol-ecule of the title compound, C(14)H(11)N(3)O(4), assumes an E conformation about the C=N double bond. The benzene rings form a dihedral angle of 3.9 (2)°. The crystal structure is stabilized by N-H⋯O, O-H⋯N, O-H⋯O and C-H⋯O hydrogen bonds, forming layers parallel to (101). In addition, intra-layer π-π stacking inter-actions [centroid-centroid distance = 3.635 (2) Å] are observed.

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N'-(2-Hy-droxy-4-meth-oxy-benzyl-idene)-3-nitro-benzohydrazide.

Project description:In the mol-ecule of the title compound, C(15)H(13)N(3)O(3), an intra-molecular O-H⋯N hydrogen bond influences the planarity of the conformation; the dihedral angle between the benzene rings is 11.4 (3)°. In the crystal, mol-ecules are linked by N-H⋯O hydrogen bonds into chains in [101].

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