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2-Fluoro-N'-[(2-meth-oxy-naphthalen-1-yl)methyl-idene]benzohydrazide.

ABSTRACT: The asymmetric unit of the title compound, C(19)H(15)FN(2)O(2), contains two mol-ecules, A and B, in which the dihedral angles between the ring systems are 46.4?(2) and 17.24?(14)°, respectively. In the crystal, mol-ecules are linked into [010] chains of alternating A and B species by N-H?O hydrogen bonds.

SUBMITTER: Li HB

PROVIDER: S-EPMC3344106 | biostudies-literature | 2012 Apr

REPOSITORIES: biostudies-literature

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3-Chloro-N'-[(2-meth-oxy-naphthalen-1-yl)methyl-idene]benzohydrazide.

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Project description:In the title compound, C(23)H(22)N(2)O(2)S(2), the dihedral angles between the 4-meth-oxy-substituted phenyl ring and the other two phenyl rings are 84.4?(4) and 77.7?(1)°, respectively, while the dihedral angle between the two phenyl rings is 57.5?(2)°. The amino group is not involved in an N-H hydrogen bond. The crystal packing is established by inter-molecular C-H?O packing inter-actions involving a relatively rare weak three-center hydrogen bond between the keto O atom and H atoms of the two nearby phenyl rings, which link the mol-ecules into chains running along the a axis. Additional weak inter-molecular hydrogen-bond inter-actions between the 4-meth-oxy O atom and one of the phenyl rings and provide added stability to the crystal packing.

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Project description:In the title compound, C18H14N2O3, the dihedral angle between the naphthalene ring system and the benzene ring is 59.99 (13)°. A short intra-molecular C-H⋯N contact closes an S(6) ring. The nitro group is disordered over two orientations in a statistical ratio. In the crystal, weak C-H⋯O hydrogen bonds and very weak π-π stacking inter-actions [centroid-centroid separation = 3.9168 (17) Å] are observed.

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