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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[(3,5-dimethoxy-phen-yl)ethyn-yl]benzene
Summary
This study details a novel organic compound, C(26)H(22)O(4), a meth-oxy substituted 1,4-bis-(phenyl-ethyn-yl)benzene derivative. Its crystal structure reveals an almost planar molecule with specific dihedral angles and intermolecular C-H⋯O interactions forming a herring-bone pattern.
Area of Science:
- Organic Chemistry
- Crystallography
- Materials Science
Background:
- 1,4-bis-(phenyl-ethyn-yl)benzene derivatives are known for their unique electronic and structural properties.
- Methoxy substitutions can significantly influence the molecular geometry and intermolecular interactions of organic compounds.
Purpose of the Study:
- To synthesize and characterize a novel meth-oxy substituted 1,4-bis-(phenyl-ethyn-yl)benzene derivative.
- To elucidate the crystal structure and intermolecular interactions of the title compound.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
- Analysis of bond lengths, bond angles, dihedral angles, and intermolecular interactions (C-H⋯O).
Main Results:
- The title compound, C(26)H(22)O(4), was synthesized and structurally characterized.
- The molecule exhibits an almost planar conformation with specific dihedral angles between the benzene rings (7.96° and 13.32°).
- Crystal structure analysis revealed the formation of molecular tapes via C-H⋯O interactions, leading to an overall herring-bone packing.
Conclusions:
- The study provides a detailed structural analysis of a new meth-oxy substituted bis-(phenyl-ethyn-yl)benzene derivative.
- The observed intermolecular interactions and packing arrangement are crucial for understanding the solid-state properties of this class of compounds.
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