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Updated: Jun 1, 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)-2-[2-(2-Nitro-phen-yl)ethen-yl]-8-quinolyl acetate
Summary
This study details the crystal structure of a compound C(19)H(14)N(2)O(4), revealing two similar molecular conformations. Intermolecular pi-pi interactions form a stable three-dimensional crystal network.
Area of Science:
- Crystallography
- Solid-state chemistry
- Molecular structure analysis
Background:
- Understanding molecular packing and interactions is crucial in solid-state chemistry.
- The specific compound C(19)H(14)N(2)O(4) has not been previously characterized in detail regarding its crystalline form.
- Aromatic interactions significantly influence the properties and stability of crystalline materials.
Purpose of the Study:
- To elucidate the crystal structure of the title compound C(19)H(14)N(2)O(4).
- To analyze the conformational similarities and differences between molecules within the crystal lattice.
- To investigate the role of intermolecular interactions, specifically pi-pi stacking, in forming the crystal network.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
- Conformational analysis was performed on the two molecules in the asymmetric unit.
- Intermolecular distances and interaction types, including pi-pi interactions, were quantified.
Main Results:
- The title compound, C(19)H(14)N(2)O(4), crystallizes with two molecules in the asymmetric unit, exhibiting highly similar conformations.
- The angles between the two ring systems within each molecule are 8.7(1)° and 4.2(1)°.
- Significant intermolecular pi-pi interactions were observed, with a centroid-centroid distance of 3.973(1) Å, leading to the formation of a 3D network.
Conclusions:
- The crystal structure of C(19)H(14)N(2)O(4) is characterized by conformational similarity and robust intermolecular pi-pi interactions.
- These interactions are key to the formation of an extended three-dimensional network in the solid state.
- The findings provide insights into the packing behavior and intermolecular forces governing this specific organic compound.
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