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

ABSTRACT: The title compound, C(19)H(15)ClN(2)O(2), was prepared by the reaction of 2-meth-oxy-1-naphthaldehyde with 3-chloro-benzohydrazide in methanol. The dihedral angle between the benzene ring and the naphthyl ring system is 69.0?(3)°. In the crystal, inter-molecular N-H?O hydrogen bonds link the mol-ecules into chains along the c axis. The crystal packing exhibits ?-? inter-actions, as indicated by distances of 3.768?(3)?Å between the centroids of the naphthyl rings of neighbouring mol-ecules.

SUBMITTER: Li TY

PROVIDER: S-EPMC3051782 | biostudies-literature |

REPOSITORIES: biostudies-literature

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

Project description: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.

| S-EPMC3344106 | biostudies-literature

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

Project description:There are three independent mol-ecules in the asymmetric unit of the title compound, C(19)H(16)N(2)O(3), in which the dihedral angles between the naphthalene ring system and the benzene ring are 7.52?(16), 18.15?(18), and 13.9?(2)°. All the mol-ecules exist in the trans configuration with respect to the methyl-idene units. In each mol-ecule there is one O-H?N and one N-H?O intra-molecular hydrogen bond. In the crystal, two of the mol-ecules are linked via a bifurcated N-H?(O,O) hydrogen bond. All three mol-ecules are further linked via C-H?O inter-actions.

| S-EPMC3201446 | biostudies-literature

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

Project description:The title compound, C(18)H(13)ClN(2)O(2), was prepared by the reaction of 2-hy-droxy-1-naphthaldehyde with 3-chloro-benzohydrazide in methanol. An intra-molecular O-H?N hydrogen bond influences the mol-ecular conformation; the benzene ring and naphthyl ring system form a dihedral angle of 17.1?(3)°. In the crystal, inter-molecular N-H?O hydrogen bonds link the mol-ecules into chains propagated in [101].

| S-EPMC3051679 | biostudies-literature

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

Project description:The mol-ecule of the title compound, C(19)H(15)BrN(2)O(2), displays a pseudo-trans conformation about the N-N bond [C-N-N=C torsion angle = 164.7?(2)°]. The dihedral angle between the planes of the benzene ring and the naphthyl system is 70.1?(2)°. In the crystal, mol-ecules are linked into C(4) chains along the c axis by N-H?O hydrogen bonds.

| S-EPMC3120542 | biostudies-other

(1Z,2E)-N'-{2-Chloro-1-methyl-2-[2-(4-methyl-phen-yl)hydrazin-1-yl-idene]ethyl-idene}-4-meth-oxy-benzohydrazide.

Project description:The asymmetric unit of the title compound, C(18)H(19)ClN(4)O(2), contains two mol-ecules, in which the dihedral angles between the benzene rings are 43.60 (12) and 58.65 (13)°. The hydrazine N atoms are twisted slightly out of the planes of the tolyl and meth-oxy-benzene rings: the C-C-N-N and N-N-C-C torsion angles are 171.1 (2) and -174.4 (2)°, respectively, for one mol-ecule and -177.4 (2) and -170.6 (2)°, respectively, for the other. In the crystal, mol-ecules are linked by N-H⋯O and C-H⋯O hydrogen bonds into chains propagating along the b-axis direction.

| S-EPMC3343910 | biostudies-literature

N'-[Bis(benzyl-sulfan-yl)methyl-idene]-4-meth-oxy-benzohydrazide.

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.

| S-EPMC3007250 | biostudies-literature

(E)-3-Chloro-N-[(2-eth-oxy-naphthalen-1-yl)methyl-idene]aniline.

Project description:In the title compound, C(19)H(16)ClNO, the dihedral angle between the naphthalene ring system and the chloro-benzene ring is 61.90 (10)° and the C-N-C-C torsion angle is 174.6 (2)°. The mol-ecular structure is stabilized by an intra-molecular C-H⋯N hydrogen bond. The crystal structure features π-π stacking inter-actions [centroid-centroid distances = 3.7325 (17) and 3.8150 (17) Å].

| S-EPMC3414968 | biostudies-literature

2-Chloro-N'-[(E)-(2-meth-oxy-1-naphth-yl)methyl-ene]benzohydrazide.

Project description:In the mol-ecule of the title Schiff base compound, C(19)H(15)ClN(2)O(2), the dihedral angle between the benzene ring and naphthyl ring system is 77.1?(2)°. In the crystal structure, centrosymmetrically related mol-ecules are linked into dimers through pairs of inter-molecular N-H?O hydrogen bonds, generating rings of graph set R(2) (2)(8).

| S-EPMC2969653 | biostudies-literature

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

Project description:The title compound, C(16)H(16)N(2)O(2), is the product of the reaction of 4-meth-oxy-benzaldehyde and 4-methyl-benzo-hydrazide. The dihedral angle between the substituted benzene rings is 17.6?(3)° and the meth-oxy C atom is almost coplanar with its attached ring [deviation = 0.019?(4)?Å]. In the crystal, mol-ecules are linked by N-H?O hydrogen bonds, forming C(4) chains propagating along the b-axis direction.

| S-EPMC3239071 | biostudies-literature

N'-[(E)-2-Chloro-benzyl-idene]-2-(6-meth-oxy-naphthalen-2-yl)propano-hydrazide.

Project description:In the title compound, C21H19ClN2O2, the benzene ring and the naphthalene ring system are oriented at a dihedral angle of 65.24?(10)°. In the crystal, N-H?O, C-H?N and C-H?O hydrogen bonds link the mol-ecules, forming chains along the b-axis direction. Further C-H?O hydrogen bonds link the chains, forming corrugated sheets lying parallel to (10-1).

| S-EPMC4051055 | biostudies-literature

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