N′-(2-Hydroxy-3,5-diiodobenzylidene)-2-methoxybenzohydrazide
نویسندگان
چکیده
The title compound, C(15)H(12)I(2)N(2)O(3), was synthesized by the condensation of equimolar amounts of 3,5-diiodo-salicylaldehyde and 2-methoxy-benzohydrazide in a methanol solution. There are two independent mol-ecules, A and B, in the asymmetric unit. The dihedral angle between the two benzene rings is 30.2 (2)° for mol-ecule A and 21.7 (2)° for mol-ecule B. There are intra-molecular O-H⋯N and N-H⋯O hydrogen bonds in each mol-ecule. The crystal studied was an inversion twin with a 0.59 (3):0.41 (3) domain ratio.
منابع مشابه
(E)-N′-(2-Hydroxy-3,5-diiodobenzylidene)-2-nitrobenzohydrazide methanol solvate
In the title compound, C(14)H(9)I(2)N(3)O(4)·CH(3)OH, the Schiff base mol-ecule adopts an E geometry with respect to the C=N bond and the dihedral angle between the benzene rings is 45.0 (2)°; an intra-molecular O-H⋯N hydrogen bond is present. In the crystal, adjacent Schiff base mol-ecules are linked by methanol solvent mol-ecules through inter-molecular N-H⋯O and O-H⋯O hydrogen bonds, forming...
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Crystals of the title compound, C(14)H(9)BrI(2)N(2)O(2)·H(2)O, were obtained from a condensation reaction of 3-bromo-benzohydrazide with 3,5-diiodo-salicylaldehyde. The Schiff base mol-ecule assumes an E configuration with respect to the C=N bond, and the dihedral angle between the two benzene rings is 6.9 (2)°. An intra-molecular O-H⋯N hydrogen bond is observed in the Schiff base mol-ecule and...
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In the title compound, C(16)H(15)BrN(2)O(5)·2H(2)O, the dihedral angle between the two aromatic rings is 2.9 (2)° and an intra-molecular O-H⋯N hydrogen bond is observed. One of the water mol-ecule is disordered over two positions, with occupancies of 0.83 (3) and 0.17 (3). In the crystal structure, mol-ecules are linked into a three-dimensional network by inter-molecular O-H⋯O, O-H⋯(O,O), O-H⋯N...
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In the title compound, C(17)H(18)N(2)O(5)·H(2)O, the dihedral angle between the two aromatic rings is 7.86 (7)° and an intra-molecular O-H⋯N hydrogen bond is observed. In the crystal structure, mol-ecules are linked into a three-dimensional network by inter-molecular O-H⋯O and N-H⋯O hydrogen bonds.
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The title compound, C(15)H(12)Br(2)N(2)O(3), was synthesized by the reaction of 3,5-dibromo-2-hydroxy-benzaldehyde with an equimolar quantity of 2-methoxy-benzohydrazide in methanol. The dihedral angle between the two benzene rings is 3.4 (2)° and intra-molecular O-H⋯N and N-H⋯O hydrogen bonds are observed in the mol-ecule. The crystal studied was an inversion twin with a 0.513 (19):0.487 (19) ...
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