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Updated: Jun 1, 2026

Protocol for the Synthesis of Ortho-trifluoromethoxylated Aniline Derivatives
Published on: January 19, 2016
4-(2-Thienylmethyl-eneamino)benzoic acid.
This study details the molecular structure of C(12)H(9)NO(2)S, revealing a 41.91° dihedral angle between its benzene and thiophene rings. Crystal analysis shows intermolecular hydrogen bonds, influencing molecular arrangement.
Area of Science:
- Crystallography
- Organic Chemistry
- Molecular Structure Analysis
Background:
- Understanding the three-dimensional structure of organic molecules is crucial for predicting their properties and reactivity.
- The specific arrangement of aromatic rings and the presence of heteroatoms can significantly influence molecular conformation and intermolecular interactions.
Purpose of the Study:
- To elucidate the precise molecular geometry of the title compound, C(12)H(9)NO(2)S.
- To investigate the intermolecular interactions and crystal packing of the molecule.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the molecular structure.
- Analysis of the crystal structure to identify and quantify hydrogen bonding and other non-covalent interactions.
Main Results:
- The dihedral angle between the benzene and thiophene rings was determined to be 41.91(8)°.
- Short intermolecular O-H⋯O and C-H⋯O hydrogen bonding contacts were identified in the crystal lattice.
Conclusions:
- The determined dihedral angle provides key insights into the torsional preferences of the linked aromatic systems.
- The observed hydrogen bonding network dictates the crystal packing, influencing the solid-state properties of the molecule.
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