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Cercosporin-Photocatalyzed [4+1]- and [4+2]-Annulations of Azoalkenes Under Mild Conditions
Published on: July 17, 2020
meso-4,5-Diphenyl-imidazolidin-2-one
This study determined the crystal structure of C(15)H(14)N(2)O, revealing a cis configuration of phenyl groups on the imidazolidine ring. Molecules form dimers via hydrogen bonds and a 2D network through weaker interactions.
Area of Science:
- Crystallography
- Organic Chemistry
- Supramolecular Chemistry
Background:
- Understanding the three-dimensional structure of organic molecules is crucial for predicting their properties and reactivity.
- Imidazolidine derivatives are important scaffolds in medicinal chemistry and materials science.
- Crystal structure analysis provides precise details on molecular geometry and intermolecular interactions.
Purpose of the Study:
- To determine the precise crystal structure of the title compound, C(15)H(14)N(2)O.
- To elucidate the spatial arrangement of the phenyl groups and the imidazolidine ring.
- To investigate the intermolecular interactions governing the crystal packing.
Main Methods:
- Single-crystal X-ray diffraction was employed for crystal structure determination.
- The crystal structure was solved and refined using standard crystallographic software.
- Analysis of bond lengths, bond angles, and intermolecular distances was performed.
Main Results:
- The crystal structure confirms a cis relationship between the phenyl groups at the 4- and 5-positions of the imidazolidine ring.
- The dihedral angle between the two phenyl rings was determined to be 48.14(6)°.
- Intermolecular N-H⋯O hydrogen bonds form centrosymmetric dimers, while N-H⋯π(arene) and π-π stacking interactions create a two-dimensional network.
Conclusions:
- The crystal structure provides definitive evidence for the cis configuration of the phenyl substituents.
- The identified hydrogen bonding and π-π stacking interactions dictate the supramolecular architecture in the solid state.
- This structural information is valuable for the design of related compounds with specific solid-state properties.
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