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Cercosporin-Photocatalyzed [4+1]- and [4+2]-Annulations of Azoalkenes Under Mild Conditions
Published on: July 17, 2020
4-(Pyrrol-1-yl)-1,2,4-triazole
Ryan M Hellyer1, John A Joule, David S Larsen
1Department of Chemistry, University of Otago, PO Box 56, Dunedin, New Zealand.
This study details the crystal structure of a nitrogen-rich compound, C(6)H(6)N(4). Molecular analysis reveals planar rings linked by a triazole-pyrrole bond, with hydrogen and pi-pi interactions governing crystal packing.
Area of Science:
- Crystallography
- Organic Chemistry
- Materials Science
Background:
- Understanding the molecular arrangement and intermolecular forces is crucial for predicting material properties.
- Nitrogen-rich compounds often exhibit unique electronic and structural characteristics.
Purpose of the Study:
- To elucidate the crystal structure of the title compound, C(6)H(6)N(4).
- To analyze the molecular geometry and intermolecular interactions within the crystal lattice.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the crystal structure.
- Analysis of bond lengths, angles, and non-covalent interactions (hydrogen bonding, pi-pi stacking) was performed.
Main Results:
- The asymmetric unit contains one and a half molecules of C(6)H(6)N(4), with a crystallographic C(2) axis.
- Each molecule features two planar five-membered rings (triazole and pyrrole) joined by an N-N bond, oriented nearly perpendicular to each other.
- Intermolecular interactions include C-H...N hydrogen bonds and offset face-to-face pi-pi stacking.
Conclusions:
- The crystal structure of C(6)H(6)N(4) is characterized by a unique arrangement of planar rings.
- Hydrogen bonding and pi-pi interactions play significant roles in stabilizing the crystal structure.
- This detailed structural information provides a foundation for further studies on the compound's properties and potential applications.
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