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N'-[(E)-1-(4-Chloro-phen-yl)ethyl-idene]-2-[4-(2-methyl-prop-yl)phen-yl]propano-hydrazide.

ABSTRACT: The asymmetric unit of the title compound, C(21)H(25)ClN(2)O, contains four crystallographically independent mol-ecules, which differ mainly in the orientation of the isobutyl groups. The benzene rings are almost orthogonal to each other, forming dihedral angles of 87.40 (6), 88.69 (6), 84.88 (6) and 85.12 (6)° in the four mol-ecules. The crystal structure is stabilized by inter-molecular N-H⋯O and C-H⋯O hydrogen bonds, together with C-H⋯π inter-actions.

SUBMITTER: Fun HK

PROVIDER: S-EPMC2967938 | biostudies-literature |

REPOSITORIES: biostudies-literature

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N'-[(E)-(Furan-2-yl)methyl-idene]-2-[4-(2-methyl-prop-yl)phen-yl]propano-hydrazide.

Project description:In the title mol-ecule, C18H22N2O2, the furan and benzene rings form a dihedral angle of 70.17 (14)°. In the crystal, strong N-H⋯O and weak C-H⋯O hydrogen bonds link the mol-ecules into chains running parallel to [010].

| S-EPMC3998455 | biostudies-literature

2-[4-(2-Methyl-prop-yl)phen-yl]-N'-[(E)-1-phenyl-ethyl-idene]propane-hydrazide.

Project description:In the title compound, C(21)H(26)N(2)O, the dihedral angle between the two aromatic rings is 85.90 (19)°. The propenone-hydrazide unit forms dihedral angles of 21.62 (8) and 72.83 (9)°, respectively, with the terminal and central aromatic rings. The 2-methyl-propyl group is disordered over two sites, with occupancies of 0.533 (13) and 0.467 (13). In crystal structure, mol-ecules are linked into centrosymmetric dimers by paired N-H⋯O and C-H⋯O hydrogen bonds. In addition, C-H⋯π inter-actions are observed.

| S-EPMC2960058 | biostudies-literature

1-[1-(4-Chloro-phen-yl)ethyl-idene]carbono-hydrazide.

Project description:The mol-ecular skeleton of the title mol-ecule, C(9)H(11)ClN(4)O, is essentially planar, the dihedral angle between the ring and the and N/N/C plane being 6.7 (3)°. In the crystal, inter-molecular N-H⋯O and N-H⋯N hydrogen bonds link the mol-ecules into ribbons propagated along [010].

| S-EPMC2969952 | biostudies-literature

N'-[1-(4-Chloro-phen-yl)ethyl-idene]benzo-hydrazide.

Project description:In the title mol-ecule, C(15)H(13)ClN(2)O, the two benzene rings form a dihedral angle of 5.48 (4)°. In the crystal, N-H⋯O hydrogen bonds link mol-ecules related by translation along the a axis into chains, which are further aggregated into layers parallel to the ac plane through weak C-H⋯O and C-H⋯N inter-actions.

| S-EPMC3247437 | biostudies-literature

Crystal structure of N'-[(E)-(4-chloro-phen-yl)(phen-yl)methyl-idene]-4-methyl-benzene-sulfono-hydrazide.

Project description:The title compound, C20H17ClN2O2S, was obtained by a condensation reaction between 4-chloro-benzo-phenone and tosyl hydrazide. The plane of the methyl-substituted benzene ring forms dihedral angles of 20.12 (12) and 78.43 (13)° with those of the chlorine-substituted benzene ring and the benzene ring, respectively, with the last two rings forming a dihedral angle of 67.81 (13)°. The chlorine substituent was also found to be 0.868 (2):0.132 (2) disordered over these two rings. In the crystal, mol-ecules are linked through pairs of N-H⋯O hydrogen bonds, giving centrosymmetric cyclic dimers [graph set R 2 (2)(8)], which are linked by weak C-H⋯O and C-H⋯Cl inter-actions into a chain structure which extends along the a-axis direction.

| S-EPMC4331850 | biostudies-literature

N'-[(E)-(5-Bromo-2-hydroxy-phen-yl)(phen-yl)methyl-idene]-4-chloro-benzo-hydrazide.

Project description:The Schiff base, C(20)H(14)BrClN(2)O(2), displays a trans conformation with respect to the C=N double bond. The aromatic rings at either end of the -C(=O)-NH-N=C- fragment are nearly parallel [dihedral angle = 3.4?(5)°]. The hydr-oxy group forms an intra-molecular hydrogen bond to the imino N atom.

| S-EPMC2977427 | biostudies-literature

Ethyl 2-[4-(4-chloro-benzo-yl)phen-oxy]-2-methyl-propano-ate.

Project description:In the title compound, C(19)H(19)ClO(4), the dihedral angle between the mean planes of the benzene rings is 126.8?(1)°. Weak C-H?O inter-actions are observed.

| S-EPMC3379337 | biostudies-literature

A triclinic polymorph of (E)-2-(4-iso-butyl-phen-yl)-N'-[1-(4-nitro-phen-yl)ethyl-idene]propano-hydrazide.

Project description:The asymmetric unit of the triclinic polymorph of the title compound, C21H25N3O3, consists of two mol-ecules, whereas for the monoclinic polymorph Z' = 1 [Fun et al. (2009 ▶). Acta Cryst. E65, o445]. The two mol-ecules exhibit an E configuration with respect to the C=N bond. The mol-ecules are linked into dimers by N-H⋯O and C-H⋯O hydrogen bonds forming R 2 (2)(8) ring motifs. In addition, π-π inter-actions occur between nitro-phenyl groups [minimum centroid-centroid distance 3.940 (2) Å], stacking the molecules along the ac plane.

| S-EPMC3793817 | biostudies-literature

2-(4-Isobutyl-phen-yl)-N'-[(3Z)-2-oxoindolin-3-yl-idene]propano-hydrazide.

Project description:In the title compound, C(21)H(23)N(3)O(2), the indolin-2-one group is essentially planar, with a maximum deviation of 0.016?(2)?Å for the N atom, and makes a dihedral angle of 84.38?(14)° with the benzene ring. The =N-N(H)-C(=O)-C- torsion angle is 0.9?(3)°. In the crystal, mol-ecules are linked into a three-dimensional network via N-H?O and C-H?O hydrogen bonds. In addition, a C-H?? inter-action was observed.

| S-EPMC3344156 | biostudies-literature

N'-[1-(2-Amino-phen-yl)ethyl-idene]benzo-hydrazide.

Project description:The title compound, C(15)H(15)N(3)O, was obtained by a condensation reaction between o-amino-acetophenone and benzoyl hydrazine. The mol-ecule displays an E configuration about the C=N bond. Intra-molecular N-H?N hydrogen bonds are formed between the 2-amino-phenyl and imine groups. In the crystal, dimers are formed between mol-ecules linked by inter-molecular N-H?O hydrogen bonds from the 2-amino-phenyl group. In addition there are inter-molecular N-H?O hydrogen bonds between the amine and carbonyl groups of adjacent mol-ecules. The mol-ecule is twisted rather than planar due to a steric inter-action between the central amide group and the two outer benzene rings. The dihedral angles between this central group and the two rings are 23.29?(9) and 24.96?(9)°.

| S-EPMC2979270 | biostudies-literature

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