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N'-(2-Hydr-oxy-4-methoxy-benzyl-idene)isonicotinohydrazide.

ABSTRACT: The title compound, C(14)H(13)N(3)O(3), was synthesized by the condensation reaction of 2-hydr-oxy-4-methoxy-benzaldehyde with isonicotinohydrazide in a methanol solution. The mol-ecule of the compound displays a trans configuration with respect to the C=N and C-N bonds. The dihedral angle between the benzene and the pyridine rings is 27.3?(2)°. In the crystal, mol-ecules are linked by N-H?N inter-actions into zigzag chains with graph-set notation C(7) along [010]. An intra-molecular O-H?N hydrogen bond is observed.

SUBMITTER: Zhi F

PROVIDER: S-EPMC2984034 | biostudies-literature | 2010 Mar

REPOSITORIES: biostudies-literature

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N'-(2-Hydr-oxy-4-methoxy-benzyl-idene)isonicotinohydrazide.

Zhi Feng F Wang Rong R

Acta crystallographica. Section E, Structure reports online 20100320 Pt 4

The title compound, C(14)H(13)N(3)O(3), was synthesized by the condensation reaction of 2-hydr-oxy-4-methoxy-benzaldehyde with isonicotinohydrazide in a methanol solution. The mol-ecule of the compound displays a trans configuration with respect to the C=N and C-N bonds. The dihedral angle between the benzene and the pyridine rings is 27.3 (2)°. In the crystal, mol-ecules are linked by N-H⋯N inter-actions into zigzag chains with graph-set notation C(7) along [010]. An intra-molecular O-H⋯N hydro ...[more]

PMID: 21580709

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N'-(5-Bromo-2-hydr-oxy-3-methoxy-benzyl-idene)isonicotinohydrazide.

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Project description:In the title compound, C(16)H(16)N(2)O(4)·H(2)O, the dihedral angle between the two benzene rings is 12.4?(2)° and the mol-ecule adopts an E configuration with respect to the C=N bond. There are intra-molecular O-H?N and O-H?O hydrogen bonds in the hydrazone mol-ecule, which both generate S(6) rings. In the crystal structure, mol-ecules are linked by N-H?O and O-H?O hydrogen bonds, forming layers parallel to the ab plane. The crystal studied was a non-merohedral twin with a domain ratio of 0.887?(3):0.113?(3).

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