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

ABSTRACT: In the asymmetric unit of the title compound, C(14)H(11)N(5)O(6), there are three crystallographically independent mol-ecules with similar conformations but some differences in bond angles. The mol-ecules are slightly twisted with the dihedral angles between the benzene rings being 10.02?(14), 8.41?(15) and 1.40?(14)°. In each mol-ecule, an intra-molecular N-H?O hydrogen bond generates an S(6) ring motif. In the crystal, mol-ecules are linked by weak C-H?O inter-actions into a three-dimensional network. ?-? inter-actions with centroid-centroid distances of 3.5635?(17)-3.8273?(18)?Å are observed.

SUBMITTER: Fun HK

PROVIDER: S-EPMC3435706 | biostudies-literature | 2012 Sep

REPOSITORIES: biostudies-literature

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

Fun Hoong-Kun HK Chantrapromma Suchada S Nilwanna Boonlerd B Kobkeatthawin Thawanrat T Boonnak Nawong N

Acta crystallographica. Section E, Structure reports online 20120811 Pt 9

In the asymmetric unit of the title compound, C(14)H(11)N(5)O(6), there are three crystallographically independent mol-ecules with similar conformations but some differences in bond angles. The mol-ecules are slightly twisted with the dihedral angles between the benzene rings being 10.02 (14), 8.41 (15) and 1.40 (14)°. In each mol-ecule, an intra-molecular N-H⋯O hydrogen bond generates an S(6) ring motif. In the crystal, mol-ecules are linked by weak C-H⋯O inter-actions into a three-dimensional ...[more]

PMID: 22969577

Similar Datasets

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

Project description:The title compound, C(14)H(11)N(5)O(6), was obtained from the condensation reaction of 2,4-dinitro-phenyl-hydrazine and 2-nitro-acetophenone. The mol-ecule displays an E conformation about the C=N double bond and an intra-molecular N-H⋯O hydrogen bond generates an S(6) ring motif. The dihedral angle between the benzene rings is 7.84 (6)°. In the crystal, mol-ecules are linked by C-H⋯O hydrogen bonds and π-π stacking inter-actions [centroid-centroid distance = 3.6447 (8) Å] into a three-dimensional network.

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N-[1-(Biphenyl-4-yl)ethyl-idene]-N'-(2,4-dinitro-phen-yl)hydrazine.

Project description:The title compound, C(20)H(16)N(4)O(4), contains two crystallographically independent mol-ecules (A and B) in the asymmetric unit. Intra-molecular N-H⋯O hydrogen bonds generate S(6) ring motifs in both molecules. The dihedral angles between the nitro-substituted benzene rings and the two benzene rings in mol-ecules A and B are 14.32 (9), 17.89 (9)° and 13.04 (9) and 25.71 (9)°. The ortho and para nitro groups form dihedral angles of 6.2 (2) and 8.5 (2)° in mol-ecule A, and 5.3 (3) and 13.8 (2)° in mol-ecule B, with the benzene rings to which they are attached. The crystal structure is stabilized by inter-molecular C-H⋯O inter-actions.

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N-(2,4-Dinitro-phen-yl)-N'-(1-p-tolyl-ethyl-idene)hydrazine.

Project description:In the title mol-ecule, C(15)H(14)N(4)O(4), the dihedral angle between the two benzene rings is 2.21 (7)°. An intra-molecular N-H⋯O hydrogen bond generates an S(6) ring motif. The mean planes of the ortho- and para-nitro groups make dihedral angles of 2.17 (17) and 2.05 (16)°, respectively, with the benzene ring to which they are attached. In the crystal structure, weak inter-molecular C-H⋯O hydrogen bonds generate R(2) (2)(7), R(2) (2)(13) and R(2) (1)(10) ring motifs, linking symmetry-related mol-ecules into extended chains along the b axis. In addition, there are inter-molecular C⋯C [3.332 (2)-3.343 (2) Å] contacts which are shorter than the sum of the van der Waals radii. The crystal structure is further stabilized by inter-molecular C-H⋯π and π-π stacking inter-actions [centroid-centroid distance = 3.8090 (9) Å].

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

Project description:The mol-ecule of the title compound, C(12)H(10)N(4)O(4)S, is slightly twisted, with a dihedral angle of 8.23?(9)° between the benzene and thio-phene rings. One nitro group is co-planar [O-N-C-C torsion angles = -0.5?(3) and -1.9?(3)°] whereas the other is slightly twisted with respect to the benzene ring [O-N-C-C torsion angles = -5.1?(3) and -5.7?(3)°]. In the crystal, the mol-ecules are linked by weak C-H?O inter-actions into screw chains along the b axis. The mol-ecular conformation is consolidated by an intra-molecular N-H?O hydrogen bond.

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

Project description:The title compound, C(14)H(11)FN(4)O(4), crystallizes with two essentially planar mol-ecules in the asymmetric unit; the dihedral angles between the benzene rings are 1.57?(15) and 6.17?(15)°. In each mol-ecule, an intra-molecular N-H?O hydrogen bond generates an S(6) ring. In the crystal, mol-ecules are linked by weak C-H?O and C-H?F inter-actions into sheets lying parallel to (120). O?C [2.980?(4)?Å] and O?N [2.892?(3)?Å] short contacts also occur.

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(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.

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(E)-1-(2,4-Dinitro-phen-yl)-2-[1-(3-meth-oxy-phen-yl)ethyl-idene]hydrazine.

Project description:There are two crystallographically independent mol-ecules in the asymmetric unit of the title compound, C(15)H(14)N(4)O(5), with different conformations for the meth-oxy groups. The mol-ecules are both slightly twisted, the dihedral angles between two benzene rings being 8.37 (18)° in one and 7.31 (18)° in the other. In both mol-ecules, the two nitro groups are essentially coplanar with their bound benzene ring, with the r.m.s. deviation of the dinitro-benzene plane being 0.0310 (3) Å in one mol-ecule and 0.0650 (3) Å in the other. In each mol-ecule, an intra-molecular N-H⋯O hydrogen bond generates an S(6) ring motif. In the crystal, mol-ecules are linked by weak C-H⋯O inter-actions and stacked along the a axis through π-π inter-actions, with centroid-centroid distances of 3.651 (2) and 3.721 (2) Å. The crystal studied was a non-merohedral twin with a refined minor component of 20.1 (3)%.

| S-EPMC3393954 | biostudies-literature

(E)-1-(2,4-Dinitro-phen-yl)-2-[1-(2-meth-oxy-phen-yl)ethyl-idene]hydrazine.

Project description:The mol-ecule of the title compound, C(15)H(14)N(4)O(5), is in an E conformation with respect to the C=N double bond and the dihedral angle between the two benzene rings is 37.83 (7)°. The ethyl-idenehydrazine plane makes dihedral angles of 4.93 (9) and 42.38 (9)° with the two benzene rings. An intra-molecular N-H⋯O hydrogen bond generates an S(6) ring motif. In the crystal, mol-ecules are linked by weak C-H⋯O inter-actions into chains along the c axis which are stacked along the b axis by aromatic π-π inter-actions with a centroid-centroid distance of 3.5927 (10) Å.

| S-EPMC3238869 | biostudies-literature

N-(2,4-Dinitro-phen-yl)-N'-[nitro-(phenyl)-methyl-ene]hydrazine.

Project description:The title compound, C(13)H(9)N(5)O(6), contains three nitro groups. It is prepared by the reaction of benzaldehyde 2,4-dinitro-phenyl-hydrazone with nitric oxide at ambient temperature. The imine group is nearly coplanar with the (2,4-dinitro-phen-yl)-hydrazine unit. The second benzene ring and the third nitro group are twisted away from this plane, with dihedral angles of 48.5 (3) and 15.2 (3)°, respectively. Weak intra-molecular N-H⋯O inter-actions are observed.

| S-EPMC2960026 | biostudies-literature

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