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(E)-N'-(2-Chloro-benzyl-idene)-3,5-di-hydroxy-benzohydrazide dihydrate.

ABSTRACT: In the Schiff base mol-ecule of the title compound, C(14)H(11)ClN(2)O(3)·2H(2)O, the benzene rings form a dihedral angle of 20.6?(1)°. The water molecules of crystallization are involved in the formation of a three-dimensional hydrogen-bonding network via O-H?O and N-H?O hydrogen bonds.

SUBMITTER: Yuan L

PROVIDER: S-EPMC3247416 | biostudies-literature | 2011 Nov

REPOSITORIES: biostudies-literature

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(E)-N'-(2-Chloro-benzyl-idene)-3,5-di-hydroxy-benzohydrazide dihydrate.

Yuan Ling L Nan Yi Y Li Jing-Yuan JY Huang Xiu-Lan XL

Acta crystallographica. Section E, Structure reports online 20111022 Pt 11

In the Schiff base mol-ecule of the title compound, C(14)H(11)ClN(2)O(3)·2H(2)O, the benzene rings form a dihedral angle of 20.6 (1)°. The water molecules of crystallization are involved in the formation of a three-dimensional hydrogen-bonding network via O-H⋯O and N-H⋯O hydrogen bonds. ...[more]

PMID: 22220034

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N'-(5-Chloro-2-hydroxy-benzyl-idene)-3,4,5-trihydroxy-benzohydrazide dihydrate.

Project description:The benzohydrazide mol-ecule in the title dihydrate, C(14)H(11)ClN(2)O(5)·2H(2)O, is non-planar, with the two aromatic rings at either side of the -C(=O)-NH-N=CH- unit forming a dihedral angle of 29.7?(2)°. The benzohydrazide mol-ecule is linked to the water mol-ecules by O-H?O and N-H?O hydrogen bonds, with other O-H?O hydrogen bonds leading to a layer structure.

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Project description:In the mol-ecule of the title compound, C(14)H(11)ClN(2)O(2), the dihedral angle between the benzene rings is 30.53 (4)°. In the crystal structure, inter-molecular O-H⋯O and N-H⋯O hydrogen bonds link the mol-ecules into a two-dimensional network. π-π contacts between benzene rings [centroid-centroid distance = 3.619 (1) Å] may further stabilize the structure. The crystal studied was found to be an inversion twin.

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Project description:The mol-ecule of the title compound, C(14)H(11)ClN(2)O(2), displays a trans configuration with respect to the C=N double bond. The dihedral angle between the two benzene rings is 12.8?(3)°. In the crystal structure, mol-ecules are linked through inter-molecular O-H?O and N-H?O hydrogen bonds and C-H?? inter-actions, forming a three-dimensional network.

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Project description:The title compound, C(14)H(10)Br(2)N(2)O(3)·H(2)O, was synthesized by the reaction of 3,5-dibromo-2-hydroxy-benzaldehyde with an equimolar amount of 4-hydroxy-benzohydrazide in methanol. The structure comprises a Schiff base unit and a water mol-ecule of crystallization. The dihedral angle between the benzene rings in the Schiff base is 1.3?(3)°. In the crystal structure, mol-ecules are linked through inter-molecular O-H?O and N-H?O hydrogen bonds, with the water mol-ecule serving as both donor and acceptor. As a result, layers are formed, which are approximately parallel to the bc plane.

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