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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.

Project description:The title mol-ecule, C(14)H(11)N(3)O(4), is approximately planar, with an inter-planar angle between the two benzene rings of 5.8?(2)°. In the crystal, four mol-ecules are linked by an R(4) (4)(12) motif with pairs of strong O-H?O and N-H?O hydrogen bonds. The motif is situated about the crystallographic centres of symmetry and it is composed of two pairs of parallel mol-ecules. This quadruplet of mol-ecules is further extended by symmetry-equivalent hydrogen bonds to form layers parallel to the (10) plane. In addition to the hydrogen bonds, there is also a weak ?-? inter-action between the benzene rings.

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Project description:The title compound, C(14)H(11)N(3)O(4), was prepared by the reaction of 4-nitro-benzohydrazide with 4-hy-droxy-benz-alde-hyde. The whole mol-ecule of the compound is approximately planar, with a mean deviation from the least-squares plane through all the non-H atoms of 0.050?(2)?Å; the dihedral angle between the two benzene rings is 2.0?(2)°. In the crystal, the benzohydrazide mol-ecules are linked through inter-molecular O-H?O and N-H?O hydrogen bonds, forming layers in the bc plane.

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Project description:The title compound, C(14)H(11)N(3)O(4), was obtained by a condensation reaction between 3-nitro-benzaldehyde and 4-hy-droxy-benzohydrazide. The whole mol-ecule is approximately planar, with a dihedral angle of 9.2 (3)° between the benzene rings. The mol-ecule displays an E conformation about the C=N bond. In the crystal, mol-ecules are linked via N-H⋯O, O-H⋯O and O-H⋯N hydrogen bonds, generating sheets parallel to the bc plane.

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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 title compound, C(15)H(13)N(3)O(5), was prepared by condensing 5-hy-droxy-2-nitro-benzaldehyde and 2-hy-droxy-3-methyl-benzohydrazide in methanol. The two benzene rings make a dihedral angle of 3.9?(3)°. An intra-molecular O-H?O hydrogen bond is observed. The crystal structure is stabilized by inter-molecular O-H?O and N-H?O hydrogen bonds, and C-H?O and ?-? inter-actions [centroid-centroid distances = 3.5658?(17)-3.9287?(19)?Å].

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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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Project description:In the title compound, C(14)H(10)ClN(3)O(4)·2CH(4)O, the main mol-ecule is in an E configuration with respect to the methyl-idene unit. The dihedral angle between the mean planes of the two benzene rings is 1.9?(3)°. In the crystal, inter-molecular N-H?O, O-H?O and bifurcated O-H?(O, O) hydrogen bonds link the components into sheets parallel to (100). An intra-molecular O-H?O hydrogen bond is also present.

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N'-(5-Bromo-2-hy-droxy-benzyl-idene)-4-nitro-benzohydrazide methanol monosolvate.

Project description:In the title compound, C(14)H(10)BrN(3)O(4)·CH(4)O, the benzohydrazide mol-ecule is nearly planar [maximum deviation = 0.110?(2)?Å]. The mean planes of the two benzene rings make a dihedral angle of 8.4?(3)°. In the benzohydrazide mol-ecule, there is an intra-molecular O-H?N hydrogen bond and the NH group is hydrogen bonded to the methanol solvent mol-ecule. In the crystal, inter-molecular O-H?O hydrogen bonds involving the methanol solvent mol-ecule link the benzohydrazide mol-ecules to form chains which propagate along the a axis.

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