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Updated: Jun 1, 2026
19:58
Palladium N-Heterocyclic Carbene Complexes: Synthesis from Benzimidazolium Salts and Catalytic Activity in Carbon-carbon Bond-forming Reactions
Published on: July 30, 2017
1,4-Bis(4-pyridylmeth-oxy)benzene.
Summary
This study details the crystal structure of a C18H16N2O2 compound, revealing molecular symmetry and intermolecular interactions. The findings highlight specific hydrogen bonding patterns influencing crystal packing.
Area of Science:
- Crystallography
- Molecular structure analysis
- Supramolecular chemistry
Background:
- Understanding the three-dimensional arrangement of atoms in organic molecules is crucial for predicting their properties and reactivity.
- Crystal engineering relies on identifying and utilizing intermolecular forces to design materials with specific characteristics.
Purpose of the Study:
- To elucidate the crystal structure of the title compound, C18H16N2O2.
- To analyze the molecular geometry, including the relative orientation of aromatic rings.
- To identify and characterize intermolecular interactions, such as hydrogen bonds, that govern crystal packing.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
- Analysis of bond lengths, bond angles, and torsion angles provided detailed geometric information.
- Intermolecular interactions were investigated using geometric criteria and visualization tools.
Main Results:
- The molecule of C18H16N2O2 possesses a center of inversion, indicating high symmetry.
- The phenyl-ene ring is oriented at 62.7(1)° relative to the pyridyl ring.
- Weak intermolecular C-H⋯N hydrogen bonds form sheets parallel to the (104) plane, supplemented by C-H⋯O interactions.
Conclusions:
- The crystal structure of C18H16N2O2 is characterized by a high degree of molecular symmetry.
- Specific dihedral angles dictate the relative orientation of the aromatic systems within the molecule.
- Intermolecular hydrogen bonding plays a significant role in the self-assembly of molecules into a layered crystal structure.
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