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4-(Di-phenyl-meth-oxy)-3-eth-oxy-benzaldehyde
Erika Samoľová1, Aliakbar Dehno Khalaji2, Václav Eigner1
1Institute of Physics AS CR, v.v.i., Na Slovance 2, 182 21 Prague 8, Czech Republic.
This study details the crystal structure of a C22H20O3 compound, revealing a significant dihedral angle between aromatic rings and an extended ethoxy side chain. Molecular interactions in the crystal lattice were also analyzed.
Area of Science:
- Crystallography
- Organic Chemistry
- Molecular Structure
Background:
- Understanding the three-dimensional arrangement of atoms in organic molecules is crucial for predicting their properties and reactivity.
- Crystal structure analysis provides detailed insights into molecular geometry and intermolecular forces.
Purpose of the Study:
- To elucidate the crystal structure of the title compound, C22H20O3.
- To analyze the dihedral angle between aromatic rings and the conformation of the ethoxy side chain.
- To investigate the intermolecular interactions present in the crystal lattice.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the molecular structure.
- Analysis of bond lengths, bond angles, and dihedral angles provided geometric information.
- Identification of weak C-H⋯π and C-H⋯O interactions through crystallographic analysis.
Main Results:
- The dihedral angle between the aromatic rings connected by the methine group was determined to be 81.265(4)°.
- The ethoxy side chain was observed to adopt an extended conformation, with a C-O-C-C torsion angle of 177.24(10)°.
- Weak C-H⋯π and C-H⋯O interactions were identified as the primary forces responsible for linking molecules into sheets within the crystal.
Conclusions:
- The crystal structure of C22H20O3 reveals a non-planar arrangement of its aromatic systems.
- The observed molecular conformation and intermolecular interactions provide a basis for understanding the solid-state behavior of this compound.
- Further studies could explore structure-property relationships based on these crystallographic findings.
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