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Updated: May 22, 2026

Protocol for the Synthesis of Ortho-trifluoromethoxylated Aniline Derivatives
Published on: January 19, 2016
2-Hy-droxy-anilinium 3,5-dinitro-benzoate
1National First-Class Key Discipline for Traditional Chinese Medicine of Nanjing University of Chinese Medicine, Nanjing 210046, People's Republic of China.
This study details the crystal structure of a molecular salt, C(6)H(8)NO(+)·C(7)H(3)N(2)O(6) (-). Achiral components form two-stranded chains through various hydrogen bonds, revealing specific molecular arrangements.
Area of Science:
- Crystallography
- Supramolecular Chemistry
- Materials Science
Background:
- Molecular salts are crucial in various chemical applications.
- Understanding the self-assembly of organic molecules is key to designing new materials.
- Chiral crystallization of achiral components presents unique structural challenges.
Purpose of the Study:
- To elucidate the crystal structure of the molecular salt C(6)H(8)NO(+)·C(7)H(3)N(2)O(6) (-).
- To investigate the hydrogen bonding network governing the self-assembly of achiral components.
- To analyze the conformational preferences of the molecular salt.
Main Methods:
- Single-crystal X-ray diffraction analysis.
- Crystallographic space group determination (P2(1)).
- Analysis of hydrogen bond types (N-H⋯O, O-H⋯O, C-H⋯O).
Main Results:
- The molecular salt crystallizes in the chiral monoclinic space group P2(1).
- Achiral components self-assemble into two-stranded chains parallel to the [010] direction.
- Specific dihedral angles were determined for the carboxy and nitro groups relative to the benzene ring.
Conclusions:
- The study provides a detailed structural characterization of the novel molecular salt.
- The identified hydrogen bonding patterns dictate the observed supramolecular architecture.
- The conformational analysis offers insights into the molecular packing and stability.
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