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(E)-4-Amino-N'-(5-chloro-2-hy-droxy-benzyl-idene)benzohydrazide.

ABSTRACT: In the title hydrazide Schiff base compound, C(14)H(12)ClN(3)O(2), the conformation around the C=N double bond is E. The dihedral angle between the benzene rings is 41.57 (14) Å. An intra-molecular O-H⋯N hydrogen bond makes an S(6) ring motif. In the crystal, mol-ecules are linked by N-H⋯O (bifurcated acceptor) and N-H⋯N hydrogen bonds, forming chains along the a axis. The inter-esting feature of the crystal structure is the short inter-molecular C⋯O [3.216 (3), 3.170 (3), and 2.992 (3) Å] contacts, one of which is significantly shorter than the sum of the van der Waals radii of these atoms [3.22 Å].

SUBMITTER: Kargar H

PROVIDER: S-EPMC3393930 | biostudies-literature |

REPOSITORIES: biostudies-literature

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3-Chloro-N'-(4-diethyl-amino-2-hy-droxy-benzyl-idene)benzohydrazide.

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(E)-4-Amino-N'-(5-chloro-2-hy-droxy-benzyl-idene)benzohydrazide.

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

Project description:The title compound, C(14)H(11)ClN(2)O(2), was prepared by the reaction of 4-hy-droxy-benzaldehyde with 3-chloro-benzo-hydrazide in methanol. The dihedral angle between the two benzene rings is 38.2?(2)°. In the crystal, mol-ecules are linked through inter-molecular N-H?O, O-H?N and O-H?O hydrogen bonds, forming layers lying parallel to the bc plane.

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Project description:The mol-ecule of the title compound, C14H11ClN2O2 adopts an E conformation of the azomethine double bond and the dihedral angle between the benzene rings is 38.96?(13)°. In the crystal, mol-ecules are linked by N-H?O and O-H?O (with the ketone O atom as acceptor) and C-H?O (with the hy-droxy O atom as acceptor) hydrogen bonds, forming a three-dimensional network.

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(E)-2-Chloro-N'-(4-hy-droxy-benzyl-idene)-benzohydrazide.

Project description:The title hydrazone mol-ecule, C(14)H(11)ClN(2)O(2), has a trans conformation with respect to the methyl-idene unit. The dihedral angle between the two benzene rings is 37.6?(3)°. In the crystal, the presence of O-H?O, O-H?N and N-H?O hydrogen bonds leads to the formation of a three-dimensional network. The title compound crystallized in the chiral ortho-rhom-bic space group P2(1)2(1)2(1) and was refined as an inversion twin [Flack parameter = -0.20?(18)].

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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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