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5-(4-Hy-droxy-phen-yl)imidazolidine-2,4-dione
Jin-Hui Xue1, Yong-Qi Qin2, Zi-Feng Zhang1
1Department of Chemistry and Chemical Engineering, Lvliang University, Lvliang, Shanxi 033001, People's Republic of China.
Summary
This study synthesized a novel compound C9H8N2O3 using phenol, glyoxylic acid, and urea. Structural analysis revealed an almost planar imidazolidine ring with specific twists relative to the benzene ring, forming a 3D framework via hydrogen bonds.
Area of Science:
- Organic Chemistry
- Crystallography
- Supramolecular Chemistry
Background:
- Understanding the synthesis and structural properties of novel organic compounds is crucial in chemistry.
- Imidazolidine derivatives are important scaffolds in medicinal chemistry and materials science.
- Hydrogen bonding plays a key role in the self-assembly of molecules in the solid state.
Purpose of the Study:
- To synthesize and characterize a new organic compound with the molecular formula C9H8N2O3.
- To elucidate the crystal structure and conformational properties of the synthesized compound.
- To investigate the intermolecular interactions, specifically hydrogen bonding, that stabilize the crystal lattice.
Main Methods:
- Chemical synthesis involving the reaction of phenol, glyoxylic acid, and urea in an aqueous medium.
- Single-crystal X-ray diffraction to determine the three-dimensional molecular structure and conformation.
- Analysis of intermolecular interactions, including hydrogen bond geometry (N-H⋯O and O-H⋯O).
Main Results:
- Successful synthesis of the target compound C9H8N2O3.
- The imidazolidine ring exhibits an almost planar conformation with a root-mean-square deviation of 0.012 Å.
- The imidazolidine ring is significantly twisted (89.3°) relative to the attached benzene ring.
- Molecules self-assemble into a three-dimensional framework through a network of N-H⋯O and O-H⋯O hydrogen bonds.
Conclusions:
- The study successfully synthesized and characterized a novel organic compound.
- The determined crystal structure provides insights into the conformational preferences of the imidazolidine ring system.
- The formation of a 3D hydrogen-bonded network highlights the importance of non-covalent interactions in crystal engineering.