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N'-(2-Hydroxy-naphthyl-idene)-4-methoxy-benzo-hydrazide.

ABSTRACT: The title Schiff base compound, C(19)H(16)N(2)O(3), was derived from the condensation reaction of 2-hydr-oxy-1-naphthyl-aldehyde with 4-methoxy-benzohydrazide. The dihedral angle between the benzene ring and the naphthyl ring system is 6.8 (2)°. In the crystal structure, mol-ecules are linked through inter-molecular N-H⋯O inter-molecular hydrogen bonds, forming chains running along the c axis.

SUBMITTER: Tang CB

PROVIDER: S-EPMC2960934 | biostudies-literature |

REPOSITORIES: biostudies-literature

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N'-(2-Methoxy-benzyl-idene)-2-nitro-benzo-hydrazide.

Project description:The title compound, C(15)H(13)N(3)O(4), was synthesized by the reaction of equimolar quanti-ties of 2-methoxy-benzaldehyde and 2-nitro-benzohydrazide in methanol. The dihedral angle between the two substituted benzene rings is 68.3?(2)°. In the crystal structure, inversion dimers linked by pairs of N-H?O hydrogen bonds occur.

| S-EPMC2968637 | biostudies-literature

N'-Cyclo-hexyl-idene-2-hydroxy-benzo-hydrazide.

Project description:In the title mol-ecule, C(13)H(16)N(2)O(2), the cyclo-hexyl-idene ring adopts a chair conformation. The intra-molecular N-H?O hydrogen bond influences the mol-ecular conformation: the benzene ring and the mean plane of the central C(O)NHN fragment form a dihedral angle of 4.9?(1)?Å. In the crystal, inter-molecular O-H?O hydrogen bonds link the mol-ecules into chains propagated along [001].

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N'-(4-Methoxy-benzyl-idene)-4-nitro-benzo-hydrazide methanol solvate.

Project description:The title compound, C(15)H(13)N(3)O(4)·CH(4)O, was synthesized from the reaction of 4-methoxy-benzaldehyde with 4-nitro-benzohydrazide in methanol. The benzene rings of the Schiff base mol-ecule are nearly coplanar, making a dihedral angle of 7.0?(3)°. The methanol solvent mol-ecules are linked to the Schiff base mol-ecules by N-H?O, O-H?N and O-H?O hydrogen bonds, forming chains running parallel to the b axis.

| S-EPMC2960903 | biostudies-other

N'-(2-Meth-oxy-1-naphthyl-idene)nicotino-hydrazide.

Project description:The title compound, C(18)H(15)N(3)O(2), was prepared by the reaction of 2-methoxy-naphthaldehyde with nicotinic acid hydrazide in methanol. The dihedral angle between the naphthalene ring system and the pyridine ring is 9.2?(3)°. An intra-molecular C-H?N hydrogen bond is observed. In the crystal structure, mol-ecules are linked into chains running along the c axis by inter-molecular N-H?O hydrogen bonds.

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N'-(3-Methoxy-benzyl-idene)aceto-hydrazide.

Project description:In the title mol-ecule, C(10)H(12)N(2)O(2), the acetohydrazide group is planar within 0.012?(1)?Å and forms a dihedral angle of 5.25?(8)° with the benzene ring. The meth-oxy group is coplanar with the attached benzene ring [C-O-C-C = 0.1?(2)°]. The mol-ecule adopts a trans configuration with respect to the C=N double bond. In the crystal, mol-ecules are linked into centrosymmetric dimers by N-H?O hydrogen bonds and these dimers are linked into a ribbon-like structure along [110] by C-H?O hydrogen bonds. In addition, an inter-molecular C-H?? inter-action is observed.

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4-Hydr-oxy-N'-(4-hydroxy-benzo-yl)benzo-hydrazide.

Project description:In the mol-ecule of the title compound, C(14)H(12)N(2)O(4), the two benzene rings make a dihedral angle of 84.53?(8)°. O-H?O and N-H?O hydrogen bonds link adjacent mol-ecules into a layer structure.

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Project description:The title compound, C(13)H(11)N(3)O, was prepared by the reaction of benzohydrazide and nicotinaldehyde. The dihedral angle between the planes of the two aromatic rings is 47.78?(9)°. The crystal structure is stabilized by inter-molecular N-H?N hydrogen-bonding inter-actions.

| S-EPMC2971113 | biostudies-literature

N'-(2-Chloro-benzyl-idene)benzo-hydrazide.

Project description:The asymmetric unit of the title compound, C(14)H(11)ClN(2)O, contains two independent mol-ecules. In one mol-ecule, the two aromatic rings form a dihedral angle of 45.94?(16)°, while in the second mol-ecule this angle is 58.48?(16)°. In the crystal, inter-molecular N-H?O hydrogen bonds link the mol-ecules into two crystallographically independent sets of chains propagating along [001].

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N'-(Adamantan-2-yl-idene)benzo-hydrazide.

Project description:The title mol-ecule, C(17)H(20)N(2)O, is a functionalized hydrazine with benzoyl and adamantyl substituents attached to the two hydrazine N atoms. In the crystal, mol-ecules are linked via N-H?N hydrogen bonds, forming chains propagating along the a-axis direction. There are also C-H?O, C-H?N and C-H?? inter-actions present within the chains.

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N'-[(E)-(5-Bromo-2-hydroxy-phen-yl)(phen-yl)methyl-idene]-4-chloro-benzo-hydrazide.

Project description:The Schiff base, C(20)H(14)BrClN(2)O(2), displays a trans conformation with respect to the C=N double bond. The aromatic rings at either end of the -C(=O)-NH-N=C- fragment are nearly parallel [dihedral angle = 3.4?(5)°]. The hydr-oxy group forms an intra-molecular hydrogen bond to the imino N atom.

| S-EPMC2977427 | biostudies-literature

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