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Updated: Jun 1, 2026

Synthesis and Purification of Iodoaziridines Involving Quantitative Selection of the Optimal Stationary Phase for Chromatography
Published on: May 16, 2014
3-Amino-1-methyl-pyrazin-1-ium iodide.
This study details the crystal structure of a compound, highlighting a short carbon-nitrogen bond and N-H⋯I hydrogen bonds that form clusters in the solid state.
Area of Science:
- Crystallography
- Solid-state chemistry
- Organic chemistry
Background:
- Aryl amines are important functional groups in organic chemistry.
- Understanding their structural properties is crucial for developing new materials and pharmaceuticals.
Purpose of the Study:
- To characterize the crystal structure of the title compound, C(5)H(8)N(3) (+)·I(-).
- To investigate the bonding characteristics and intermolecular interactions within the crystal lattice.
Main Methods:
- Single-crystal X-ray diffraction analysis was performed.
- The crystal structure was solved and refined to determine atomic positions and bond lengths.
Main Results:
- The C-N(H(2)) bond distance was found to be 1.338(8) Å, which is among the shortest observed for aryl amines.
- Analysis revealed the formation of centrosymmetric four-component clusters through N-H⋯I hydrogen bonds between cations and anions.
Conclusions:
- The short C-N bond suggests significant electronic delocalization within the cation.
- The observed hydrogen bonding network dictates the supramolecular architecture, leading to the formation of ordered clusters in the solid state.
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