3,5-Dihydroxy-N′-[(2-hydroxy-1-naphthyl)methylene]benzohydrazide
نویسندگان
چکیده
In the title compound, C(18)H(14)N(2)O(4), the dihedral angle between the benzene ring and the naphthyl ring system is 10.1 (2)°. The mol-ecule is nearly planar, with a mean deviation from the plane of 0.141 (2) Å for 24 non-H atoms. An intra-molecular O-H⋯N hydrogen bond forms a pseudo-6-membered ring and the mol-ecules are linked into sheets by inter-molecular N-H⋯O and O-H⋯O hydrogen bonds.
منابع مشابه
2-Hydroxy-N′-[(E)-(3-hydroxy-2-naphthyl)methylene]benzohydrazide. Corrigendum
The chemical name of the title compound in the paper by Sun, Li, Wang, Fu & Wang [Acta Cryst. (2009), E65, o262] is corrected and the structural diagram is updated.[This corrects the article DOI: 10.1107/S1600536808044073.].
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In the title mol-ecule, C(18)H(14)N(2)O(3), O-H⋯N and N-H⋯O hydrogen bonds influence the mol-ecular conformation; the benzene and naphthalene planes are inclined at a dihedral angle of 11.54 (5)°. In the crystal structure, inter-molecular O-H⋯O hydrogen bonds link the mol-ecules into chains running in the [01] direction.
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In the title complex, [CuBr(2)(C(19)H(15)N(3)O(2))], the metal ion is coordinated by the N,N',O-tridentate 2-hydr-oxy-N'-[phen-yl(2-pyrid-yl)methyl-ene]benzohydrazide ligand and two bromide ions, resulting in a distorted CuN(2)OBr(2) square-based pyramidal coordination geometry with one bromide ion in the apical site. An intra-molecular N-H⋯O hydrogen bond occurs in the ligand. In the crystal, ...
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The asymmetric unit of the title compound, C(15)H(13)N(3)O(7)·2H(2)O, consists of a hydrazone mol-ecule and two solvent water mol-ecules. The mol-ecule adopts an E configuration with respect to the C=N bond. It is relatively planar, with a dihedral angle between the two benzene rings of 2.6 (1)°. There are intra-molecular O-H⋯N and O-H⋯O hydrogen bonds in the hydrazone mol-ecule. In the crystal...
متن کامل2,4-Dihydroxy-N′-(2-hydroxy-4-methoxybenzylidene)benzohydrazide
In the title compound, C(15)H(14)N(2)O(5), the dihedral angle between the two benzene rings is 4.3 (3)° and the mol-ecule adopts an E configuration with respect to the C=N bond. Intra-molecular O-H⋯N and N-H⋯O hydrogen bonds are observed. In the crystal structure, the mol-ecules are linked through inter-molecular N-H⋯O and O-H⋯O hydrogen bonds to form layers parallel to the ac plane.
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