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N'-(3,4-Dihydroxy-benzyl-idene)acetohydrazide.

ABSTRACT: In the title compound, C(9)H(10)N(2)O(3), the Schiff base mol-ecule is approximately planar, the dihedral angle between the benzene ring and the acetohydrazide group (r.m.s. deviation = 0.034?Å) being 8.81?(7)°. An intra-molecular O-H?O hydrogen bond is observed. In the crystal, mol-ecules are linked into a three-dimensional network by O-H?O, N-H?O and C-H?O hydrogen bonds.

SUBMITTER: Li WW

PROVIDER: S-EPMC2970026 | biostudies-literature | 2009 Aug

REPOSITORIES: biostudies-literature

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N'-(3,4-Dihydroxy-benzyl-idene)acetohydrazide.

Li Wei-Wei WW Lv Lu-Ping LP Yu Wen-Bo WB Zhang Yong-Zhao YZ Hu Xian-Chao XC

Acta crystallographica. Section E, Structure reports online 20090808 Pt 9

In the title compound, C(9)H(10)N(2)O(3), the Schiff base mol-ecule is approximately planar, the dihedral angle between the benzene ring and the acetohydrazide group (r.m.s. deviation = 0.034 Å) being 8.81 (7)°. An intra-molecular O-H⋯O hydrogen bond is observed. In the crystal, mol-ecules are linked into a three-dimensional network by O-H⋯O, N-H⋯O and C-H⋯O hydrogen bonds. ...[more]

PMID: 21577513

Similar Datasets

N'-(3,4-Dihydroxy-benzyl-idene)acetohydrazide monohydrate.

Project description:In the title compound, C(9)H(10)N(2)O(3)·H(2)O, the Schiff base mol-ecule is approximately planar, the dihedral angle between the benzene and acetohydrazide planes being 5.40?(7)°. An intra-molecular O-H?O hydrogen bond is observed. In the crystal, mol-ecules are linked into a two-dimensional network parallel to (100) by O-H?O, N-H?O, O-H?N and C-H?O hydrogen bonds, and by ?-? inter-actions between symmetry-related benzene rings [centroid-centroid distance = 3.543?(2)?Å].

| S-EPMC2977139 | biostudies-literature

N'-(3,4-Dimethoxy-benzyl-idene)acetohydrazide.

Project description:In the title mol-ecule, C(11)H(14)N(2)O(3), the acetohydrazide group is planar 0.084?(1)?Å and forms a dihedral angle of 19.7?(1)° with the benzene ring. One of the meth-oxy groups is coplanar with the attached benzene ring within 0.052?(3)?Å, whereas the other is slightly twisted [C-O-C-C = 6.3?(3)°]. The mol-ecule adopts a trans configuration with respect to the C=N bond. In the crystal, the mol-ecules are linked into chains along the a axis by N-H?O hydrogen bonds and the chains are cross-linked into a three-dimensional network by C-H?O hydrogen bonds.

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(E)-N'-(3,4-Dihydroxy-benzyl-idene)-4-nitro-benzohydrazide.

Project description:In the title Schiff base compound, C(14)H(11)N(3)O(5), the dihedral angle between the two benzene rings is 1.6?(1)°. The mol-ecule displays an E configuration about the C=N bond. An intra-molecular O-H?O hydrogen bond is observed. In the crystal, mol-ecules are linked into layers parallel to (101) by O-H?O, N-H?O and C-H?O hydrogen bonds. One of the hydroxyl groups is disordered over two positions, with occupancies of 0.643?(5) and 0.357?(5).

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(E)-N'-(4-Bromo-benzyl-idene)-3,4-dihydroxy-benzohydrazide monohydrate.

Project description:In the title compound, C(14)H(11)BrN(2)O(3)·H(2)O, the dihedral angle between the two benzene rings of the Schiff base is 22.7?(2)° and an intra-molecular O-H?O hydrogen bond is observed. In the crystal, mol-ecules are linked into layers parallel to the ab plane by O-H?O and N-H?O hydrogen bonds.

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(E)-N'-(2,5-Dimethoxy-benzyl-idene)-3,4-dihydroxy-benzohydrazide monohydrate.

Project description:In the title compound, C(16)H(16)N(2)O(5)·H(2)O, the dihedral angle between the two benzene rings is 25.9 (1)°. Intra-molecular O-H⋯O and N-H⋯O hydrogen bonds are observed. In the crystal, the components are linked into a three-dimensional network by O-H⋯O and O-H⋯(O,O) hydrogen bonds.

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(E)-N'-(3,4-Dimethoxy-benzyl-idene)-2,4-dihydroxy-benzohydrazide methanol solvate.

Project description:The title compound, C(16)H(16)N(2)O(5)·CH(3)OH, was obtained from a condensation reaction of 3,4-dimethoxy-benzaldehyde and 2,4-dihydroxy-benzohydrazide. The non-H atoms of the Schiff base mol-ecule are approximately coplanar (r.m.s. deviation = 0.043?Å) and the dihedral angle between the two benzene rings is 1.6?(1)°. The mol-ecule adopts an E configuration with respect to the C=N double bond. An intra-molecular O-H?O hydrogen bond is observed. The Schiff base and methanol mol-ecules are linked into a two-dimensional network parallel to (10) by inter-molecular N-H?O, O-H?N and O-H?O hydrogen bonds.

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N'-(4-Fluoro-benzyl-idene)acetohydrazide.

Project description:The title compound, C(9)H(9)FN(2)O, was prepared by the reaction of 4-fluoro-benzophenone and acethydrazide. In the mol-ecule, all non-H atoms are essentially coplanar [r.m.s. deviation = 0.065?(2)?Å]. In the crystal, mol-ecules are linked into centrosymmetric dimers by pairs of inter-molecular N-H?O hydrogen bonds.

| S-EPMC3009195 | biostudies-literature

N'-(2-Fluoro-benzyl-idene)acetohydrazide.

Project description:The title compound, C(9)H(9)FN(2)O, was prepared by the reaction between 2-fluoro-benzophenone and acetohydrazide. In the crystal structure, inversion dimers linked by pairs of N-H?O hydrogen bonds occur, generating R(2) (2)(8) loops.

| S-EPMC2984006 | biostudies-literature

(E)-N'-(3,4-Dimethoxy-benzyl-idene)-2-(8-quinol-yloxy)acetohydrazide-methanol-water (1/1/1).

Project description:In the title compound, C(20)H(19)N(3)O(4)·CH(4)O·H(2)O, the Schiff base mol-ecule is almost planar, with a dihedral angle of 1.2?(1)° between the benzene ring and the quinoline ring system. An intra-molecular N-H?O hydrogen bond generates an S(6) ring. In the crystal, the methanol and water solvent mol-ecules are linked to the Schiff base mol-ecule via N-H?O, O-H?O, O-H?N and O-H?(O,N) hydrogen bonds.

| S-EPMC2972133 | biostudies-literature

N'-[4-(Dimethyl-amino)benzyl-idene]acetohydrazide.

Project description:The title compound, C(11)H(15)N(3)O, crystallizes with two independent mol-ecules per asymmetric unit which differ slightly in their side-chain orientations: the C=N-N-C torsion angle is -176.2 (3)° in one of the mol-ecules and -179.83 (3)° in the other. Each independent mol-ecule adopts a trans configuration with respect to the C=N bond. The two independent mol-ecules are related by a pseudo-inversion center and they exist as a N-H⋯O hydrogen-bonded dimer. The dimers are linked into zigzag chains along [100] by C-H⋯O hydrogen bonds.

| S-EPMC2969918 | biostudies-literature

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