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Updated: May 13, 2026

Microwave-Assisted Preparation of 1-Aryl-1H-pyrazole-5-amines
Published on: June 23, 2019
2-Chloro-6-methyl-pyrimidin-4-amine
1College of Life Science and Chemical Engineering, Huaiyin Institute of Technology, Huaiyin 223003, Jiangsu, People's Republic of China.
The crystal structure of C5H6ClN3 reveals molecules forming dimers via hydrogen bonds. These dimers further assemble into a 2D network, with slipped pi-pi interactions adding structural complexity.
Area of Science:
- Crystallography
- Supramolecular Chemistry
Background:
- Understanding molecular interactions is key to designing new materials.
- Crystal structure analysis provides insights into intermolecular forces.
Purpose of the Study:
- To elucidate the crystal structure of the title compound, C5H6ClN3.
- To identify and characterize the intermolecular interactions governing the crystal packing.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the crystal structure.
- Analysis of hydrogen bonding and pi-pi interactions was performed.
Main Results:
- Molecules form inversion dimers through N-H⋯N hydrogen bonds.
- These dimers assemble into a two-dimensional network parallel to the (100) plane.
- Slipped pi-pi interactions were observed between inversion-related molecules with specific geometric parameters.
Conclusions:
- The crystal structure is stabilized by a combination of N-H⋯N hydrogen bonds and slipped pi-pi interactions.
- These interactions dictate the formation of a 2D supramolecular network.
- The detailed structural analysis provides a foundation for further studies on related compounds.
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Separation of the aromatic...

