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(E)-N'-(5-Bromo-2-hy-droxy-benzyl-idene)-4-hy-droxy-3-meth-oxy-benzohydrazide methanol solvate.

ABSTRACT: In the title compound, C(15)H(13)BrN(2)O(4)·CH(4)O, the two benzene rings form a dihedral angle of 3.2 (2)°. An intra-molecular O-H⋯N hydrogen bond is observed. In the crystal structure, mol-ecules are linked through O-H⋯O and N-H⋯O hydrogen bonds, forming a two-dimensional network parallel to (10).

SUBMITTER: Liu SY

PROVIDER: S-EPMC3006942 | biostudies-literature |

REPOSITORIES: biostudies-literature

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N'-(5-Bromo-2-hy-droxy-benzyl-idene)-3-nitro-benzohydrazide methanol mono-solvate.

Project description:In the title compound, C(14)H(10)BrN(3)O(4)·CH(4)O, the dihedral angle between the two benzene rings in the hydrazone mol-ecule is 5.8?(3)° and an intra-molecular O-H?N hydrogen bond generates an S(6) ring motif. An O-H?O hydrogen bond occurs between the hydrazone mol-ecule and the methanol solvent mol-ecule. In the crystal, the components are linked by inter-molecular N-H?O hydrogen bonds, forming chains along the a axis.

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(E)-N'-(5-Bromo-2-hy-droxy-benzyl-idene)-2-meth-oxy-benzohydrazide.

Project description:In the title compound, C(15)H(13)BrN(2)O(3), the mol-ecule adopts an E configuration about the C=N bond and the two benzene rings form a dihedral angle of 20.3?(3)°. In the mol-ecule, there are two intra-molecular hydrogen bonds, viz. O-H?N and N-H?O, involving the hy-droxy substituent, the meth-oxy O atom and the hydrazide NH group and N atom. In the crystal structure, mol-ecules are linked through N-H?O hydrogen bonds, forming chains propagating along [010].

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(E)-N'-(5-Bromo-2-hy-droxy-3-meth-oxy-benzyl-idene)-2-hy-droxy-benzohydrazide monohydrate.

Project description: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.

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4-Chloro-N'-(2-hy-droxy-4-meth-oxy-benzyl-idene)benzohydrazide methanol monosolvate.

Project description:The title compound, C(15)H(13)ClN(2)O(3)·CH(3)OH, was synthesized by the condensation reaction of 2-hy-droxy-4-meth-oxy-benzaldehyde with 4-chloro-benzohydrazide in methanol. The Schiff base mol-ecule displays a trans configuration with respect to the C=N and C-N bonds. The dihedral angle between the two benzene rings is 5.3?(2)°. In the crystal, mol-ecules are linked by N-H?O and O-H?O hydrogen-bond inter-actions into chains running parallel to the a axis. An intra-molecular O-H?N hydrogen bond is observed.

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(E)-4-Bromo-N'-(4-hy-droxy-3-meth-oxy-benzyl-idene)benzohydrazide monohydrate.

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N'-[(E)-5-Bromo-2-hy-droxy-3-meth-oxy-benzyl-idene]benzohydrazide monohydrate.

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Project description:In the title compound, C17H18N4O5·0.47CH3OH, the virtually planar (r.m.s. deviation = 0.128 Å) carbonohydrazide mol-ecule is located on a twofold axis and conformation of its C=N bonds is E. There are short intra-molecular O-H⋯N hydrogen bonds between the hy-droxy groups and hydrazide N atoms. In the crystal, bifurcated N-H⋯(O,O) hydrogen bonds assemble the carbonohydrazide mol-ecules into a three-dimensional network. There are C 2 symmetric voids in this network, 47% of which are occupied by disordered methanol mol-ecules.

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

Project description:In the title compound, C(15)H(14)N(2)O(3), the dihedral angle between the two benzene rings is 47.9 (3)°. In the crystal, mol-ecules are linked through N-H⋯O, O-H⋯O and O-H⋯N hydrogen bonds, forming layers parallel to the ab plane.

| S-EPMC3274989 | biostudies-literature

4-Dimethyl-amino-N'-(2-hy-droxy-4-meth-oxy-benzyl-idene)benzohydrazide methanol monosolvate.

Project description:The asymmetric unit of the title compound, C(17)H(19)N(3)O(3)·CH(4)O, comprises two Schiff base mol-ecules and two methanol solvent mol-ecules. The Schiff base mol-ecules are approximately planar, with r.m.s. deviations from the planes defined by the non-H atoms of 0.107 and 0.154?Å, and with dihedral angles between the benzene rings of 4.49?(15) and 8.39?(15)°, respectively. This near-planarity is assisted by the formation of intra-molecular O-H?N hydrogen bonds in each mol-ecule. In the crystal, the components are linked by N-H?O and O-H?O hydrogen bonds to form chains along [010].

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(E)-4-Hy-droxy-N'-(3-hy-droxy-4-meth-oxy-benzyl-idene)benzohydrazide.

Project description:The mol-ecule of the title benzohydrazide derivative, C(15)H(14)N(2)O(4), exists in a trans conformation with respect to the C=N double bond and is twisted, the dihedral angle between the two benzene rings being 24.17?(6)°. The meth-oxy group is almost co-planar with respect to the attached benzene ring [C(m)-O-C-C (m = meth-yl) = -1.45?(17)°]. In the crystal, the mol-ecules are linked by N-H?O and O-H?O hydrogen bonds into sheets parallel to the bc plane. These sheets are further connected into a three-dimensional network by weak C-H?O and C-H?? inter-actions.

| S-EPMC3201407 | biostudies-literature

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