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Updated: May 31, 2026
06:46
Facile Preparation of (2Z,4E)-Dienamides by the Olefination of Electron-deficient Alkenes with Allyl Acetate
Published on: June 21, 2017
(E,E)-1,2-Bis(2,4,5-trimeth-oxy-benzyl-idene)hydrazine
Summary
This study details the crystal structure of C(20)H(24)N(2)O(6), revealing a nearly planar molecule with specific dihedral angles between its benzene rings. Weak C-H⋯π interactions stabilize the crystal lattice.
Area of Science:
- Crystallography
- Organic Chemistry
- Molecular Structure
Background:
- Understanding molecular geometry is crucial for predicting chemical properties.
- Crystallographic studies provide precise atomic-level structural information.
Purpose of the Study:
- To determine the precise three-dimensional structure of the title compound, C(20)H(24)N(2)O(6).
- To analyze the planarity and substituent orientations within the molecule.
- To identify intermolecular interactions stabilizing the crystal.
Main Methods:
- Single-crystal X-ray diffraction was employed to collect diffraction data.
- The crystal structure was solved and refined to determine atomic positions.
- Geometric parameters such as dihedral angles and torsion angles were analyzed.
Main Results:
- The asymmetric unit contains a half-molecule, with the complete molecule generated by a crystallographic inversion center.
- The molecule exhibits near planarity, with small dihedral angles between benzene rings (0.03°) and the central plane (8.59°).
- Methoxy groups show varied orientations: ortho/meta are slightly twisted (7.23°, 5.73°), while the para group is nearly coplanar (-2.02°).
- Crystal structure is stabilized by weak C-H⋯π interactions.
Conclusions:
- The study provides a detailed structural characterization of C(20)H(24)N(2)O(6).
- The observed planarity and substituent torsion angles offer insights into the molecule's conformation.
- Weak C-H⋯π interactions play a role in the crystal packing, influencing solid-state properties.
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