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(E)-N'-(5-Bromo-2-meth-oxy-benzyl-idene)-2-chloro-benzohydrazide.

ABSTRACT: In the title compound, C(15)H(12)BrClN(2)O(2), the dihedral angle between the two substituted aromatic rings is 77.8 (3)°. The mol-ecule exists in a trans conformation with respect to the methyl-idene unit. In the crystal structure, inversion dimers linked by pairs of N-H⋯O hydrogen bonds generate R(2) (8)(8) loops.

SUBMITTER: Li XY

PROVIDER: S-EPMC3200979 | biostudies-literature |

REPOSITORIES: biostudies-literature

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4-Chloro-N'-(4-meth-oxy-benzyl-idene)benzohydrazide methanol monosolvate.

Project description:The title compound, C(15)H(13)ClN(2)O(2)·CH(4)O, consists of a 4-chloro-N'-(4-meth-oxy-benzyl-idene)benzohydrazide (CMB) mol-ecule and a methanol mol-ecule of crystallization. It was obtained by the condensation of 4-meth-oxy-benzaldehyde with 4-chloro-benzohydrazide. In the CMB mol-ecule, the dihedral angle between the two benzene rings is 50.1?(3)°. The methanol mol-ecule is linked to the CMB mol-ecule through O-H?O and O-H?N hydrogen bonds. In the crystal, CMB mol-ecules are linked through inter-molecular N-H?O hydrogen bonds, involving the methanol mol-ecule, forming chains propagating along [010].

| S-EPMC3009357 | biostudies-literature

N'-(5-Chloro-2-hy-droxy-benzyl-idene)-4-meth-oxy-benzohydrazide.

Project description:The asymmetric unit of the title compound, C(15)H(13)ClN(2)O(3), contains two independent hydrazone mol-ecules. Each mol-ecule adopts an E configuration with respect to the methyl-idene unit and forms an intra-molecular O-H?N hydrogen bond. The principal difference between the two unique mol-ecules is the relative orientation of the two benzene rings, the dihedral angles between them being 4.0?(3) and 65.9?(3)°, respectively. In the crystal, mol-ecules are linked through N-H?O hydrogen bonds, forming chains running along the c axis.

| S-EPMC3344034 | biostudies-literature

N'-(5-Chloro-2-hy-droxy-benzyl-idene)-2-meth-oxy-benzohydrazide.

Project description:The title Schiff base compound, C(15)H(13)ClN(2)O(3), was prepared by the reaction of equimolar quanti-ties of 5-chloro-2-hy-droxy-benzaldehyde with 2-meth-oxy-benzohydrazide in a methanol solution. The dihedral angle between the two benzene rings is 20.6?(3)°. An intra-molecular O-H?N hydrogen bond may influence the mol-ecular conformation. In the crystal structure, mol-ecules form chains along the b direction via inter-molecular N-H?O hydrogen bonds which are bifurcated involving an intra-molecular N-H?O hydrogen bond.

| S-EPMC3006787 | biostudies-literature

4-Meth-oxy-N'-(4-meth-oxy-benzyl-idene)benzohydrazide.

Project description:The title compound, C(16)H(16)N(2)O(3), was prepared by the reaction of 4-meth-oxy-benzaldehyde with 4-meth-oxy-benzohydrazide in methanol. The dihedral angle between the two benzene rings is 3.1?(3)°. In the crystal, inter-molecular N-H?O hydrogen bonds link the mol-ecules into C(4) chains along the b axis.

| S-EPMC3089322 | biostudies-literature

(E)-N'-(5-Bromo-2-hy-droxy-benzyl-idene)-2-meth-oxy-benzohydrazide.

Project description:In the title compound, C(15)H(13)BrN(2)O(3), the mol-ecule adopts an E configuration about the C=N bond and the two benzene rings form a dihedral angle of 20.3?(3)°. In the mol-ecule, there are two intra-molecular hydrogen bonds, viz. O-H?N and N-H?O, involving the hy-droxy substituent, the meth-oxy O atom and the hydrazide NH group and N atom. In the crystal structure, mol-ecules are linked through N-H?O hydrogen bonds, forming chains propagating along [010].

| S-EPMC3006725 | biostudies-literature

(E)-4-Bromo-N'-(4-hy-droxy-3-meth-oxy-benzyl-idene)benzohydrazide monohydrate.

Project description:In the title compound, C(15)H(13)BrN(2)O(3)·H(2)O, the dihedral angle between the two benzene rings is 13.92?(6)°. The meth-oxy group of the 4-hy-droxy-3-meth-oxy-phenyl is almost coplanar with its bound benzene ring, as seen by the C(meth-yl)-O-C-C torsion angle of -0.35?(16)°. In the crystal, mol-ecules are linked into a three-dimensional network by N-H?O, O-H?N and O-H?O hydrogen bonds and also weak C-H?O inter-actions. A short C?O contact of 3.0191?(15)?Å is also present.

| S-EPMC3344027 | biostudies-literature

N'-[(E)-5-Bromo-2-hy-droxy-3-meth-oxy-benzyl-idene]benzohydrazide monohydrate.

Project description:The title compound, C15H13BrN2O3·H2O, exists in an E conformation with respect to the azo-methane C=N double bond. The benzene and phenyl rings form dihedral angles of 0.46?(2) and 4.90?(3)°, respectively with the central C(=O)N2C unit. An intra-molecular O-H?N hydrogen bond occurs. In the crystal, some hydrazide mol-ecules are replaced by mol-ecules of the 6-bromo isomer. The Br atom from this admixture was refined to give a partial occupancy of 0.0443?(19). A supra-molecular network is built in the lattice by means of inter-molecular N-H?O and two O-H?O inter-actions together with non-classical C-H?O inter-actions involving the lattice water mol-ecule stacking the mol-ecules along the b-axis direction.

| S-EPMC3885046 | biostudies-literature

(E)-3-Bromo-N'-(2-chloro-benzyl-idene)benzohydrazide.

Project description:The title compound, C(14)H(10)BrClN(2)O, was synthesized by the reaction of 2-chloro-benzaldehyde with an equimolar quantity of 3-bromo-benzohydrazide in methanol. The mol-ecule displays an E configuration about the C=N bond. The dihedral angle between the two benzene rings is 13.0?(2)°. In the crystal structure, mol-ecules are linked through inter-molecular N-H?O hydrogen bonds, forming chains propagating along the c axis.

| S-EPMC2969211 | biostudies-literature

(E)-4-Bromo-N'-(2-chloro-benzyl-idene)benzohydrazide.

Project description:In the title compound, C(14)H(10)BrClN(2)O, the dihedral angle between the two benzene rings is 11.4 (2)°. In the crystal structure, mol-ecules are connected via inter-molecular N-H⋯O hydrogen bonds into one-dimensional chains running parallel to the c axis.

| S-EPMC2977717 | biostudies-literature

4-Chloro-N'-(2-hy-droxy-4-meth-oxy-benzyl-idene)benzohydrazide methanol monosolvate.

Project description:The title compound, C(15)H(13)ClN(2)O(3)·CH(3)OH, was synthesized by the condensation reaction of 2-hy-droxy-4-meth-oxy-benzaldehyde with 4-chloro-benzohydrazide in methanol. The Schiff base mol-ecule displays a trans configuration with respect to the C=N and C-N bonds. The dihedral angle between the two benzene rings is 5.3?(2)°. In the crystal, mol-ecules are linked by N-H?O and O-H?O hydrogen-bond inter-actions into chains running parallel to the a axis. An intra-molecular O-H?N hydrogen bond is observed.

| S-EPMC3247565 | biostudies-literature

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