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Updated: May 3, 2026

Protocol for the Synthesis of Ortho-trifluoromethoxylated Aniline Derivatives
Published on: January 19, 2016
2,2,2-Tri-fluoro-N-(2-iodo-phen-yl)acetamide
Yang Ruchun1, Zhang Hui1, Cao Banpeng1
1Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science & Technology Normal University, Nanchang 330013, People's Republic of China.
The crystal structure of C8H5F3INO reveals disordered fluorine atoms and N-H⋯O hydrogen bonds forming chains. The dihedral angle between the ring and amide group is 62.1 degrees.
Area of Science:
- Crystallography
- Materials Science
- Organic Chemistry
Background:
- Understanding the crystal structure of organic compounds is crucial for predicting their physical and chemical properties.
- The specific arrangement of atoms and intermolecular interactions dictates a material's behavior.
Purpose of the Study:
- To elucidate the detailed crystal structure of the title compound, C8H5F3INO.
- To characterize the atomic disorder 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, bond angles, and intermolecular contacts was performed.
Main Results:
- The three fluorine atoms in C8H5F3INO exhibit positional disorder across two sites with occupancies of 0.615(14) and 0.385(14).
- Molecules are interconnected via N-H⋯O hydrogen bonds, leading to the formation of one-dimensional chains along the c-axis.
- The dihedral angle between the aromatic ring and the amide group was determined to be 62.1(3)°.
Conclusions:
- The crystal structure of C8H5F3INO is characterized by significant fluorine atom disorder and hydrogen-bonded chain formation.
- The observed structural features provide insights into the solid-state behavior and potential applications of this trifluoromethyl-substituted compound.
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