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

ABSTRACT: 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].

SUBMITTER: Du L

PROVIDER: S-EPMC2969952 | biostudies-literature |

REPOSITORIES: biostudies-literature

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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

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

Project description: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.

| S-EPMC2967938 | biostudies-literature

1,5-Bis(1-phenyl-ethyl-idene)thio-carbono-hydrazide.

Project description:The title mol-ecule, C(17)H(18)N(4)S, is not planar, as indicated by the dihedral angle of 27.24?(9)° between the two benzene rings. In the crystal, inter-molecular N-H?S hydrogen bonds link pairs of mol-ecules into inversion dimers.

| S-EPMC3120603 | 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

Ethyl 2-chloro-[2-(4-chloro-phen-yl)hydrazin-1-yl-idene]acetate.

Project description:The title compound, C(10)H(10)Cl(2)N(2)O(2), features a planar C(ar)-N(H)-N=C(Cl) unit [torsion angle = 5.5 (4)°] whose benzene substituent is coplanar with it [dihedral angle = 4.7 (4)°]; this unit is slightly twisted with respect to the carboxyl -CO(2) fragment [dihedral angle = 2.2 (52)°]. The amino group acts as a hydrogen-bond donor to the carbonyl O atom of an adjacent mol-ecule; the hydrogen bond generates a helical polymer that runs along the b axis of the monoclinic unit cell.

| S-EPMC3007972 | biostudies-literature

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

Project description:In the title compound, C(10)H(11)ClN(2)O, the dihedral angle between the acetohydrazide group and the aromatic ring is 33.76?(9)°. In the crystal, inversion dimers linked by pairs of N-H?O hydrogen bonds generate R(2) (2)(8) loops.

| S-EPMC3009114 | 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

N'-[(1E)-1-(4-Chloro-phen-yl)ethyl-idene]formohydrazide.

Project description:The structure of the title compound, C(9)H(9)ClN(2)O, consists of centrosymmetric dimers due to inter-molecular N-H?O hydrogen bonding, forming R(2) (2)(8) ring motifs. The dihedral angle between the p-chloro-phenyl unit and the remaining heavy-atom group is 6.77?(17)°.

| S-EPMC2970209 | biostudies-literature

(E)-1-[1-(2-Chloro-phen-yl)ethyl-idene]-2-(2,4-dinitro-phen-yl)hydrazine.

Project description:The title mol-ecule, C(14)H(11)ClN(4)O(4), is in an E configuration and is twisted with the dihedral angle between the two benzene rings being 38.48 (8)°. The ethyl-idenehydrazine plane makes dihedral angles of 6.03 (10) and 44.04 (11)°, respectively, with the dinitro- and chloro-substituted benzene rings. The two nitro groups are essentially coplanar with the bound benzene ring, making dihedral angles of 0.9 (2) and 1.65 (18)°. An intra-molecular N-H⋯O hydrogen bond generates an S(6) ring motif. In the crystal, mol-ecules are linked by a weak C-H⋯O inter-action into a chain along the c axis. The chains are further stacked along the b axis by a π-π inter-action with a centroid-centroid distance of 3.6088 (10) Å.

| S-EPMC3239123 | biostudies-literature

(E)-1-[1-(3-Chloro-phen-yl)ethyl-idene]-2-(2,4-dinitro-phen-yl)hydrazine.

Project description:There are two crystallographically independent mol-ecules in the asymmetric unit of the title compound, C(14)H(11)ClN(4)O(4), with the same E conformation about the C=N double bond. The mol-ecules are approximately planar, with a dihedral angle between the benzene rings of 10.24 (12)° in one mol-ecule and 4.73 (12)° in the other. In both mol-ecules, the ortho-nitro groups of the 2,4-dinitro-phenyl units are coplanar to their bound benzene rings, whereas the para-nitro groups are slightly twisted. In each mol-ecule, intra-molecular N-H⋯O hydrogen bonds generate S(6) ring motifs. In the crystal, mol-ecules are linked by weak C-H⋯O inter-actions into sheets parallel to the (-102) plane. These sheets are stacked by π-π inter-actions, with centroid-centroid distances of 3.7008 (14) and 3.7459 (14) Å. A Cl⋯O short contact [3.111 (2) Å] is observed.

| S-EPMC3295481 | biostudies-literature

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