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Facile Preparation of (2Z,4E)-Dienamides by the Olefination of Electron-deficient Alkenes with Allyl Acetate
Published on: June 21, 2017
Bis[4-(2-hydr-oxy-3-methoxy-benzyl-ideneamino)phen-yl] ether
Hong-Wu Xu1, Jin-Xia Li, Yin-Hua Li
1Department of Materials and Chemical Engineering, ZhongYuan University of Technology, Zhengzhou, Henan 450007, People's Republic of China.
Acta Crystallographica. Section E, Structure Reports Online
|January 5, 2011
Summary
A flexible Schiff base ligand was synthesized using a condensation reaction. Structural analysis revealed its unique molecular geometry and hydrogen bonding, highlighting its potential applications.
Area of Science:
- Organic Chemistry
- Crystallography
Background:
- Schiff bases are versatile ligands with diverse applications in coordination chemistry and materials science.
- Understanding the structure-property relationships of flexible ligands is crucial for designing novel functional molecules.
Purpose of the Study:
- To synthesize and characterize a novel flexible Schiff base ligand.
- To elucidate the molecular structure and conformation of the synthesized ligand.
Main Methods:
- Schiff base condensation reaction between 3-methoxy-salicylaldehyde and bis-(4-amino-phenyl) ether.
- Single-crystal X-ray diffraction analysis to determine molecular structure and conformation.
Main Results:
- The title compound, C(28)H(24)N(2)O(5), was prepared in high yield.
- The molecule crystallizes with the formula C(28)H(24)N(2)O(5) and lies on a twofold rotation axis.
- Detailed crystallographic analysis revealed specific dihedral angles (69.22° and 24.29°) between benzene rings, indicating significant molecular flexibility and twisting.
Conclusions:
- A novel flexible Schiff base ligand was successfully synthesized and characterized.
- The crystal structure provides insights into the conformational flexibility and hydrogen bonding of the ligand.
- The study contributes to the understanding of structure-property relationships in flexible organic molecules.
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Structure and Bonding
Ethers are organic compounds with an ether functional group which is characterized by an oxygen atom connected to two — identical or different — alkyl, aryl, or vinyl groups. The C–O–C linkage in dimethyl ether — the simplest ether — has an approximately tetrahedral bond angle of 110.3 degrees. The oxygen atom is sp3- hybridized, with the C–O distance being about 140 pm.
Classification of Ethers
Based on their attached substituent groups, ethers can be classified into two...
Ethers are organic compounds with an ether functional group which is characterized by an oxygen atom connected to two — identical or different — alkyl, aryl, or vinyl groups. The C–O–C linkage in dimethyl ether — the simplest ether — has an approximately tetrahedral bond angle of 110.3 degrees. The oxygen atom is sp3- hybridized, with the C–O distance being about 140 pm.
Classification of Ethers
Based on their attached substituent groups, ethers can be classified into two...
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01:19Diazonium Group Substitution: –OH and –H
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