2-(4-Nitro-benzyl-idene)malononitrile
Ming-Jen Chang1, Tzu-Chien Fang, Hsing-Yang Tsai
1Department of Chemical Engineering, Feng Chia University, 40724 Taichung, Taiwan.
Summary
This study details the molecular structure of a benzylidene malononitrile compound. An intramolecular hydrogen bond was observed, stabilizing its nearly planar conformation.
Area of Science:
- Crystallography
- Organic Chemistry
- Molecular Structure Analysis
Background:
- Benzylidene malononitrile derivatives are important in materials science and organic synthesis.
- Understanding molecular conformation is crucial for predicting chemical and physical properties.
Purpose of the Study:
- To elucidate the crystal structure and molecular conformation of a specific benzylidene malononitrile compound.
- To identify stabilizing interactions within the molecule.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the three-dimensional structure.
- Analysis of bond lengths, bond angles, and dihedral angles provided conformational insights.
Main Results:
- The benzylidene malononitrile core was found to be nearly planar.
- The nitro group exhibited approximate coplanarity with the benzene ring (dihedral angle = 8.8(3)°).
- An intramolecular C-H⋯N hydrogen bond was identified as a stabilizing factor.
Conclusions:
- The molecular conformation is significantly influenced by intramolecular hydrogen bonding.
- The near-planarity of the core structure has implications for electronic properties and potential applications.
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