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Updated: Jun 5, 2026

Facile Preparation of (2Z,4E)-Dienamides by the Olefination of Electron-deficient Alkenes with Allyl Acetate
Published on: June 21, 2017
N,N'-Bis[2-(methoxycarbonyl)ethyl]ethane-1,2-diammonium dichloride.
The crystal structure of a novel compound reveals a unique 2D hydrogen-bonding network. This network, involving chloride ions and the dimethyl N,N'-di-3-propane-carboxylato-ethane-1,2-diyldiimin-ium cation, stabilizes the crystal packing.
Area of Science:
- Crystal structure analysis
- Supramolecular chemistry
- Chemical crystallography
Background:
- Understanding crystal packing is crucial for predicting material properties.
- Hydrogen bonding and C-H···Cl interactions are key non-covalent forces in crystal engineering.
Purpose of the Study:
- To elucidate the crystal structure of the title compound, C(10)H(22)N(2)O(4) (2+)·2Cl(-).
- To investigate the intermolecular interactions stabilizing the crystal lattice.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the crystal structure.
- Analysis of hydrogen bonding and short contacts was performed.
Main Results:
- The crystal structure is characterized by the dimethyl N,N -di-3-propane-carboxylato-ethane-1,2-diyldiimin-ium cation and chloride anions.
- An infinite two-dimensional hydrogen-bonding network (⋯Cl⋯H-N-H⋯Cl⋯) was identified as the primary stabilizing force.
- Short C-H⋯Cl contacts were also observed, contributing to the overall crystal packing.
Conclusions:
- The crystal structure is stabilized by a robust 2D hydrogen-bonding network and supplementary C-H⋯Cl interactions.
- These findings contribute to the understanding of non-covalent interactions in organic salt crystal engineering.
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