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(E)-N'-(2-Hy-droxy-3,5-diiodo-benzyl-idene)nicotinohydrazide acetonitrile monosolvate.

ABSTRACT: In the hydrazone molecule of the title compound, C(13)H(9)I(2)N(3)O(2)·CH(3)CN, the aromatic rings form a dihedral angle of 9.4 (3)°. In the crystal structure, inter-molecular I⋯N inter-actions [3.099 (4) Å] link hydrogen-bonded aggregates of the hydrozone and solvent molecules related by translation along the b axis into chains. An intramolecular O-H⋯N hydrogen bond forms an S(6) ring.

SUBMITTER: Sun SS

PROVIDER: S-EPMC3151945 | biostudies-literature |

REPOSITORIES: biostudies-literature

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(E)-4-Hy-droxy-N'-(2-hy-droxy-3,5-diiodo-benzyl-idene)-3-meth-oxy-benzohydrazide methanol monosolvate.

Project description:In the title compound, C(15)H(12)I(2)N(2)O(4)·CH(3)OH, the hydrazone mol-ecule exists in an E conformation with respect to the C=N bond. The dihedral angle between the rings is 11.9 (2)°. There is one intra-molecular O-H⋯N hydrogen bond in the hydrazone mol-ecule. In the crystal, the hydrazone and methanol mol-ecules are linked through O-H⋯O and N-H⋯O hydrogen bonds and C-H⋯O inter-actions to form two-dimensional networks lying parallel to (001).

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N'-(2-Hy-droxy-3,5-diiodo-benzyl-idene)-2-methyl-benzohydrazide.

Project description:The asymmetric unit of the title compound, C(15)H(12)I(2)N(2)O(2), contains two independent mol-ecules in which the dihedral angles between the two benzene rings are 62.4?(7) and 41.1?(7)°. Intra-molecular O-H?N hydrogen bonds generate S(6) ring motifs in each mol-ecule. In the crystal, mol-ecules are linked through inter-molecular N-H?O hydrogen bonds, forming chains along the a axis.

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(E)-N'-(2-Hy-droxy-3,5-diiodo-benzyl-idene)-3-methyl-benzohydrazide.

Project description:In the title compound, C(15)H(12)I(2)N(2)O(2), the dihedral angle between the benzene rings is 26.5?(3)° and the mol-ecule has an E configuration about the C=N bond. An intra-molecular O-H?N hydrogen bond is observed in the mol-ecule. In the crystal, mol-ecules are linked by N-H?O hydrogen bonds, forming chains along the c axis.

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4-Dimethyl-amino-N'-(2-hy-droxy-3,5-diiodo-benzyl-idene)benzohydrazide.

Project description:The title mol-ecule, C(16)H(15)I(2)N(3)O(2), adopts an E configuration about the C=N bond. The dihedral angle between the two benzene rings is 6.4?(2)°. An intra-molecular O-H?N hydrogen bond occurs. In the crystal, mol-ecules are linked through inter-molecular N-H?O hydrogen bonds, forming chains propagating in the c-axis direction.

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N'-[(E)-2-Hy-droxy-3,5-diiodo-benzyl-idene]pyridine-3-carbohydrazide.

Project description:In the title compound, C(13)H(9)I(2)N(3)O(2), the dihedral angle between the two aromatic rings is 10.5 (2)°. The mol-ecule displays a trans configuration with respect to the C=N bond. An intra-molecular O-H⋯N hydrogen bond occurs. The crystal packing is stabilized by N-H⋯O and C-H⋯O hydrogen bonds.

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3-Chloro-N'-(3,5-dibromo-2-hy-droxy-benzyl-idene)benzohydrazide methanol monosolvate.

Project description:The title Schiff base compound, C(14)H(9)Br(2)ClN(2)O(2)·CH(3)OH, features an intra-molecular O-H⋯N hydrogen bond, which contributes to the planarity of the mol-ecule: the dihedral angle between the two benzene rings is 4.6 (2)°. In the crystal, pairs of adjacent mol-ecules are linked through inter-molecular N-H⋯O and O-H⋯O hydrogen bonds, forming dimers. The methanol solvent mol-ecule is linked by inter-molecular O-H⋯O hydrogen bonds.

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Project description:The title compound, C(14)H(9)Br(2)N(3)O(4)·CH(4)O, was obtained as the product of the reaction of 3,5-dibromo-salicyl-aldehyde with 4-nitro-benzohydrazide in methanol. The benzohydrazide mol-ecule is nearly planar, with a maximum deviation of 0.126 (2) Å. The mean planes of the two benzene rings make a dihedral angle of 9.3 (3)°. Intra-molecular O-H⋯N and O-H⋯Br inter-actions are observed in the benzohydrazide mol-ecule. In the crystal, pairs of adjacent benzohydrazide mol-ecules are linked by two methanol mol-ecules through inter-molecular O-H⋯O and N-H⋯O hydrogen bonds, forming a dimer.

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2-Chloro-N'-(2-hy-droxy-3,5-diiodo-benzyl-idene)benzohydrazide.

Project description:In the title compound, C(14)H(9)ClI(2)N(2)O(2), the dihedral angle between the benzene rings is 65.9?(2)° and an intra-molecular O-H?N hydrogen bond generates an S(6) ring. The mol-ecule has an E conformation about the C=N bond. In the crystal, mol-ecules are linked into C(4) chains propagating in [001] by N-H?O hydrogen bonds.

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2-[(Z)-(3-{[(Z)-2-Hy-droxy-3,5-diiodo-benzyl-idene]amino}-propyl-imino)-meth-yl]-4,6-diiodo-phenol.

Project description:In the title compound, C(17)H(14)I(4)N(2)O(2), there are two intra-molecular O-H⋯N hydrogen bonds, which make S(6) ring motifs. In the crystal, there are no significant inter-molecular inter-actions present.

| S-EPMC3414953 | biostudies-literature

N'-(3,5-Dichloro-2-hy-droxy-benzyl-idene)-4-(dimethyl-amino)-benzohydrazide methanol monosolvate.

Project description:The title compound, C(16)H(15)Cl(2)N(3)O(2)·CH(3)OH, a Schiff base molecule, is prepared by the reaction of 3,5-dichloro-salicyl-aldehyde with 4-dimethyl-amino-benzohydrazide in methanol. The Schiff base mol-ecule is approximately planar, with a mean deviation from the least-squares plane defined by the non-H atoms of 0.0452?(3)?Å, and with a dihedral angle between the benzene rings of 4.2?(3)°. This planarity is assisted by the formation of an intra-molecular O-H?N hydrogen bond. In the crystal, adjacent Schiff base mol-ecules are linked by two methanol mol-ecules through N-H?O and O-H?O hydrogen bonds, forming dimers.

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