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N′-(2-Hydroxy-5-chlorobenzylidene)-4-nitrobenzohydrazide methanol solvate  [cached]
Ling Han,Shan-Shan Huang,Qing-Bai Huang,Xue-Mei Zhou
Acta Crystallographica Section E , 2008, DOI: 10.1107/s160053680800843x
Abstract: The title compound, C14H10ClN3O4·CH4O, was synthesized from the reaction of 5-chlorosalicylaldehyde with 4-nitrobenzohydrazide in methanol. The Schiff base molecule is nearly planar, with a dihedral angle of 9.1 (3)° between the two benzene rings. The methanol solvent molecules are linked to the Schiff base molecules by N—H...O, O—H...N and O—H...O hydrogen bonds, forming chains running parallel to the a axis.
N′-(5-Bromo-2-methoxybenzylidene)-4-hydroxybenzohydrazide methanol solvate  [cached]
Xue-Song Lin,Ya-Li Sang
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809022983
Abstract: In the title hydrazone compound, C15H13BrN2O3·CH3OH, the methanol solvate is linked to the benzohydrazide molecule through O—H...N and O—H...O hydrogen bonds. The benzohydrazide molecule adopts an E configuration about the C=N double bond. The molecule is twisted, with a dihedral angle between the two substituted benzene rings of 35.7 (2)°. In the crystal structure, molecules are linked through intermolecular N—H...O and O—H...O hydrogen bonds, forming layers parallel to the ac plane.
(E)-3-Bromo-N′-(4-methoxybenzylidene)benzohydrazide methanol solvate
Guo-Biao Cao
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809030219
Abstract: The title compound, C15H13BrN2O2·CH3OH, was synthesized by the reaction of 4-methoxybenzaldehyde with an equimolar quantity of 3-bromobenzohydrazide in methanol. The benzohydrazide molecule displays an E configuration about the C=N bond. The dihedral angle between the two benzene rings is 4.0 (2)°. The benzohydrazide and methanol molecules are linked into a chain propagating along the b axis by O—H...O, O—H...N, N—H...O and C—H...O hydrogen bonds.
N′-(3,5-Dichloro-2-hydroxybenzylidene)-4-nitrobenzohydrazide methanol solvate  [cached]
Hai-Yun Zhu
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536810036184
Abstract: In the title compound, C14H9Cl2N3O4·CH4O, the dihedral angle between the two benzene rings in the hydrazone molecule is 6.3 (3)°. An intramolecular N—H...O hydrogen bond stabilizes the molecular conformation. In the crystal, centrosymmetrically related molecules are linked through intermolecular O—H...O and N—H...O hydrogen bonds.
(E)-N′-(4-Methoxybenzylidene)-3-nitrobenzohydrazide
Jin-Wu Guo,Jun-Ying Ma,Chao-Wei Sun
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536811025554
Abstract: In the title compound, C15H13N3O4, the two substituted benzene rings form a dihedral angle of 5.0 (3)°. In the crystal, intermolecular N—H...O hydrogen bonds link molecules into chains along the b axis.
N′-(3-Methoxybenzylidene)-4-nitrobenzohydrazide monohydrate  [cached]
Tanveer Ahmad,Muhammad Zia-ur-Rehman,Hamid Latif Siddiqui,Muhammad Fasih Ullah
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536810010986
Abstract: There are two independent formula units in the asymmetric unit of the title compound, C15H13N3O4·H2O. The C=C—N—C torsion angle of the methylidenehydrazide group is 174.3 (2)° in one molecule and 178.6 (2)° in the other. The dihedral angles between the two benzene rings in the two molecules are 4.17 (12) and 3.58 (12)°. In the crystal structure, intermolecular O—H...O, N—H...O and O—H...N hydrogen bonds link the components into a two-dimensional network and additional stabilization is provided by weak intermolecular C—H...O hydrogen bonds.
N′-(2-Methoxybenzylidene)-4-nitrobenzohydrazide
Hai-Yun Zhu
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536811008014
Abstract: The molecule of the title compound, C15H13N3O4, adopts an E configuration with respect to the C=N bond. The dihedral angle between the two benzene rings is 6.0 (3)°. In the crystal, molecules are linked through intermolecular N—H...O hydrogen bonds to form chains along the c axis.
4-Chloro-N′-(4-methoxybenzylidene)benzohydrazide methanol monosolvate
Hai-Tao Huang,Hong-Yuan Wu
Acta Crystallographica Section E , 2010, DOI: 10.1107/s1600536810038857
Abstract: The title compound, C15H13ClN2O2·CH4O, consists of a 4-chloro-N′-(4-methoxybenzylidene)benzohydrazide (CMB) molecule and a methanol molecule of crystallization. It was obtained by the condensation of 4-methoxybenzaldehyde with 4-chlorobenzohydrazide. In the CMB molecule, the dihedral angle between the two benzene rings is 50.1 (3)°. The methanol molecule is linked to the CMB molecule through O—H...O and O—H...N hydrogen bonds. In the crystal, CMB molecules are linked through intermolecular N—H...O hydrogen bonds, involving the methanol molecule, forming chains propagating along [010].
N′-[1-(2-Hydroxyphenyl)ethylidene]-2-nitrobenzohydrazide methanol solvate  [cached]
Ge-Jiang Xiao,Chao Wei
Acta Crystallographica Section E , 2009, DOI: 10.1107/s160053680900508x
Abstract: In the title compound, C15H13N3O4·CH3OH, the dihedral angle between the two substituted benzene rings is 66.7 (2)°. An intramolecular O—H...N hydrogen bond is observed in the Schiff base molecule. In the crystal structure, the Schiff base and solvent molecules are linked into chains running along the a axis by intermolecular O—H...O and N—H...O hydrogen bonds.
N′-(3,5-Dibromo-2-hydroxybenzylidene)-4-nitrobenzohydrazide methanol monosolvate  [cached]
Xin Zhou,Shu-Tao Gao,Jing-Jun Ma
Acta Crystallographica Section E , 2011, DOI: 10.1107/s1600536811031187
Abstract: The title compound, C14H9Br2N3O4·CH4O, was obtained as the product of the reaction of 3,5-dibromosalicylaldehyde with 4-nitrobenzohydrazide in methanol. The benzohydrazide molecule is nearly planar, with a maximum deviation of 0.126 (2) . The mean planes of the two benzene rings make a dihedral angle of 9.3 (3)°. Intramolecular O—H...N and O—H...Br interactions are observed in the benzohydrazide molecule. In the crystal, pairs of adjacent benzohydrazide molecules are linked by two methanol molecules through intermolecular O—H...O and N—H...O hydrogen bonds, forming a dimer.
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