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Updated: May 24, 2026

Facile Preparation of (2Z,4E)-Dienamides by the Olefination of Electron-deficient Alkenes with Allyl Acetate
Published on: June 21, 2017
(1E,2E)-1,2-Bis[1-(3-nitro-phen-yl)ethyl-idene]hydrazine.
This study details the crystal structure of a nitro-phenyl ethanimine compound. Molecular analysis reveals an E conformation and specific dihedral angles, with C-H⋯O interactions forming crystal sheets.
Area of Science:
- Crystallography
- Organic Chemistry
- Molecular Structure
Background:
- Understanding molecular arrangements in organic compounds is crucial for predicting material properties.
- Nitro-phenyl ethanimine derivatives are of interest due to their potential applications.
Purpose of the Study:
- To elucidate the crystal structure of the title compound, C(16)H(14)N(4)O(4).
- To analyze the molecular conformation and intermolecular interactions within the crystal lattice.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the crystal structure.
- Analysis of bond lengths, bond angles, and dihedral angles was performed.
- Identification of intermolecular interactions, specifically C-H⋯O hydrogen bonds.
Main Results:
- The asymmetric unit contains half a molecule, with the full molecule generated by a crystallographic inversion center.
- The molecule exhibits an E conformation around the C=N double bonds.
- A dihedral angle of 24.76(11)° was observed between the central C=N-N=C plane and the benzene rings.
- C-H⋯O interactions were identified, leading to the formation of sheets parallel to the (10-4) plane.
Conclusions:
- The study provides a detailed crystallographic description of the title compound.
- The observed molecular geometry and intermolecular interactions offer insights into crystal packing.
- This structural information can serve as a basis for further studies on related compounds.
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