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(E)-1-(2,4-Di-nitro-benzyl-idene)-2,2-di-phenyl-hydrazine.

ABSTRACT: In the crystal of the title compound, C19H14N4O4, the asymmetric unit consists of two discrete mol-ecules. The C=N bonds in both mol-ecules show an E conformation. The dihedral angles between the C atoms of the 2,4-dinitrobenzene rings and the C=N-N planes are 13.52?(9) and 13.82?(9)° for the two mol-ecules. In the crystal, C-H?O hydrogen bonds, mainly between the phenyl ring and the nitro group along the b axis.

SUBMITTER: Melendrez-Luevano R

PROVIDER: S-EPMC3772472 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature

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(E)-1-(2,4-Di-nitro-benzyl-idene)-2,2-di-phenyl-hydrazine.

Meléndrez-Luévano Ruth R Cabrera-Vivas Blanca M BM Flores-Alamo Marcos M Ramirez Juan C JC Conde-Sánchez Pedro P

Acta crystallographica. Section E, Structure reports online 20130608 Pt 7

In the crystal of the title compound, C19H14N4O4, the asymmetric unit consists of two discrete mol-ecules. The C=N bonds in both mol-ecules show an E conformation. The dihedral angles between the C atoms of the 2,4-dinitrobenzene rings and the C=N-N planes are 13.52 (9) and 13.82 (9)° for the two mol-ecules. In the crystal, C-H⋯O hydrogen bonds, mainly between the phenyl ring and the nitro group along the b axis. ...[more]

PMID: 24046615

Similar Datasets

Crystal structure of (E)-1-(2-nitro-benzyl-idene)-2,2-di-phenyl-hydrazine.

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(E)-1-(4-Nitro-benzyl-idene)-2,2-diphenyl-hydrazine.

Project description:The asymmetric unit of the title compound, C(19)H(15)N(3)O(2), contains two mol-ecules, both of which show an E conformation of the imine bond. The dihedral angles between the phenyl rings in the phenyl-hydrazine groups are 86.09?(6) and 83.41?(5)° in the two mol-ecules. The 4-nitrobenzene rings show torsion angles of 4.4?(2) and 10.9?(2)° from the two C=N-N planes. In the crystal, C-H?? inter-actions and C-H?O hydrogen bonds are observed growing along the a, b and c axes, resulting in a complex supramolecular array.

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1-(2,4-Di-nitro-phen-yl)-2-[(E)-2,4,5-tri-meth-oxy-benzyl-idene]hydrazine.

Project description:The title compound, C16H16N4O7, is close to being planar, with a dihedral angle of 3.15?(11)° between the benzene rings. The meth-oxy groups at the ortho- and para-positions of the 2,4,5-tri-meth-oxy-phenyl group are almost coplanar with the ring [deviations of the C atoms = 0.017?(2) and -0.025?(2)?Å, respectively], whereas the meta-meth-oxy group deviates slightly [C-atom displacement = 0.162?(2)?Å]. Both the ortho- and para-nitro groups are close to being coplanar with their attached ring [dihedral angles = 7.81?(12) and 8.56?(11)°, respectively]. An intra-molecular N-H?O hydrogen bond generates an S(6) ring motif. In the crystal, inversion dimers linked by pairs of N-H?O hydrogen bonds involving the same H atom as the intra-molecular bond generate R 2 (2)(12) loops. The dimers are linked by weak C-H?O inter-actions into sheets parallel to the (10-4) plane and the sheets are stacked by ?-? inter-actions, with a centroid-centroid distance of 3.5974?(14)?Å.

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1-(2,4-Di-nitro-phen-yl)-2-[(E)-(3,4,5-tri-meth-oxy-benzyl-idene)]hydrazine.

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(E)-1-(2,4-Di-nitro-phen-yl)-2-(3-eth-oxy-4-hy-droxy-benzyl-idene)hydrazine.

Project description:The mol-ecule of the title hydrazine derivative, C15H14N4O6, is essentially planar, the dihedral angle between the substituted benzene rings being 2.25?(9)°. The eth-oxy and hy-droxy groups are almost coplanar with their bound benzene ring [r.m.s. deviation = 0.0153?(2)?Å for the ten non-H atoms]. Intra-molecular N-H?O and O-H?Oeth-oxy hydrogen bonds generate S(6) and S(5) ring motifs, respectively. In the crystal, mol-ecules are linked by O-H?Onitro hydrogen bonds into chains propagating in [010]. Weak aromatic ?-? inter-actions, with centroid-centroid distances of 3.8192?(19) and 4.0491?(19)?Å, are also observed.

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(E)-1-(2-Nitro-benzyl-idene)-2-phenyl-hydrazine.

Project description:The asymmetric unit of the title compound, C(13)H(11)N(3)O(2), contains two mol-ecules with slightly different conformations: the dihedral angle between the aromatic rings is 13.01?(10)° in one mol-ecule and 14.05?(10)° in the other. Both mol-ecules feature short intra-molecular C-H?O contacts, which generate S(6) rings. In the crystal, both mol-ecules form inversion dimers linked by pairs of N-H?O hydrogen bonds, thereby generating R(2) (2)(16) rings.

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(E)-1-Benzyl-idene-2,2-diphenyl-hydrazine.

Project description:The asymmetric unit of the title compound, C(19)H(16)N(2), contains two independent mol-ecules, both of which show an E configuration with respect to the C=N bond. The dihedral angles between the phenyl rings bonded to the hydrazine group are 81.00?(10) and 88.34?(8)° in the two mol-ecules. Inter-molecular C-H?? inter-actions are observed in the crystal structure.

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1-[(E)-Anthracen-9-yl-methyl-idene]-2-(2,4-di-nitro-phen-yl)hydrazine.

Project description:In the title Schiff base, C21H14N4O4, the dihedral angle between the two nitro groups and the central benzene ring are 83.6?(5) and 2.6?(6)°. The anthracene ring system and the benzene ring make a dihedral angle of 0.7?(2)°. Intra-molecular N-H?O and C-H?N hydrogen bonds occur. In the crystal, C-H?O hydrogen bonds link the mol-ecules, forming chains along the b-axis direction.

| S-EPMC3648239 | biostudies-literature

(E)-1-(3,4-Dimethyl-benzyl-idene)-2,2-diphenyl-hydrazine.

Project description:The asymmetric unit of the title compound, C(21)H(20)N(2), contain two mol-ecules, both of them showing an E configuration of the C=N bond. The dihedral angles between the phenyl rings in the phenyl-hydrazone groups are 86.84?(10) and 84.85?(8)° for the two mol-ecules. Inter-molecular C-H?? inter-actions are observed in the crystal structure.

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1-Cyclo-pentyl-idene-2-(2,4-dinitro-phenyl)-hydrazine.

Project description:The title compound, C(11)H(12)N(4)O(4), was synthesized by the reaction of (2,4-dinitro-phen-yl)hydrazine with cyclo-penta-none. The cyclo-pentyl fragment is disordered over two sites with occupancies of 0.63 (1) and 0.37 (1). An intra-molecular N-H⋯O hydrogen bond helps to establish the conformation. Pairs of mol-ecules are held together by π-π inter-actions between adjacent benzene rings [centroid-to-centroid distance 3.589 (2) Å].

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