Related Experiment Video
Updated: Jun 24, 2025

Protocol for the Synthesis of Ortho-trifluoromethoxylated Aniline Derivatives
Published on: January 19, 2016
2-(10-Bromo-anthracen-9-yl)-N-phenyl-aniline
Dhandayutham Saravanan1, C Ponraj1, Themmila Khamrang2
1Department of Chemistry, National College, Thiruchirappalli, Tamil Nadu, India.
This study details the molecular structure of a novel brominated organic compound. Analysis reveals specific dihedral angles between its aromatic rings and hindered hydrogen bonding, suggesting unique intermolecular interactions.
Area of Science:
- Organic Chemistry
- Crystallography
- Supramolecular Chemistry
Background:
- Understanding the three-dimensional arrangement of atoms in organic molecules is crucial for predicting their properties.
- Aromatic systems and their spatial orientation significantly influence molecular packing and intermolecular forces.
- Brominated organic compounds can exhibit unique electronic and structural characteristics.
Purpose of the Study:
- To elucidate the precise molecular geometry of the title compound, C26H18BrN.
- To investigate the nature of intermolecular interactions within the crystal structure.
- To correlate structural features with potential chemical and physical properties.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the molecular structure.
- Analysis of dihedral angles between aromatic systems was performed.
- Intermolecular interactions, including hydrogen bonding and C-H···π interactions, were identified and analyzed.
Main Results:
- The central benzene ring exhibited significant dihedral angles of 87.49(13)° and 62.01(17)° with the adjacent anthracene and pendant benzene rings, respectively.
- The N-H group was sterically hindered, preventing intramolecular hydrogen bonding.
- Weak C-H···π interactions were observed in the extended crystal lattice.
Conclusions:
- The determined structure of C26H18BrN reveals a non-planar conformation due to restricted rotation around single bonds.
- Steric hindrance around the N-H group limits hydrogen bond formation, directing intermolecular interactions towards weaker forces like C-H···π.
- These structural insights are vital for designing related organic materials with tailored properties.
More Related Videos
Related Concept Videos
Nomenclature of Aryl and Heterocyclic Amines
Physical Properties of Amines
Basicity of Aromatic Amines
Nucleophilic Aromatic Substitution of Aryldiazonium Salts: Aromatic SN1
In the Sandmeyer reaction, for example, the diazonio group is replaced by a chloro, bromo,...
Electrophilic Aromatic Substitution: Fluorination and Iodination of Benzene
Diazonium Group Substitution: –OH and –H

