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10-Bromo-N,N-di-phenyl-anthracen-9-amine
K Sureshkumar1, Themmila Khamrang2, Madhukar Hemamalini3
1Department of Chemistry, National College, Thiruchirappalli, Tamil Nadu, India (Affiliated to Bharathidasan University, Tiruchirappalli).
This study details the crystal structure of a brominated anthracene derivative. It reveals specific dihedral angles and weak C-H⋯Br interactions forming chains, with no significant π-π stacking observed.
Area of Science:
- Crystal Chemistry
- Organic Chemistry
- Solid-State Chemistry
Background:
- Understanding molecular interactions is crucial for designing new materials.
- Anthracene derivatives are important in materials science and organic electronics.
- Brominated organic compounds exhibit unique reactivity and intermolecular forces.
Purpose of the Study:
- To elucidate the crystal structure and intermolecular interactions of a novel brominated anthracene compound.
- To investigate the role of weak interactions in the solid-state packing of organic molecules.
- To characterize the dihedral angles between the anthracene core and pendant phenyl rings.
Main Methods:
- Single-crystal X-ray diffraction analysis was performed.
- The crystal structure was solved and refined.
- Intermolecular interactions, including C-H⋯Br, π-π stacking, and C-H⋯π interactions, were analyzed.
Main Results:
- The title compound, C26H18BrN, was structurally characterized.
- Dihedral angles between the anthracene core and phenyl rings were determined as 89.51° and 74.03°.
- A weak C-H⋯Br interaction was identified, leading to the formation of [100] chains. No significant π-π or C-H⋯π interactions were observed.
Conclusions:
- The crystal packing is primarily influenced by weak C-H⋯Br interactions.
- The observed dihedral angles suggest a non-planar conformation of the molecule in the solid state.
- The absence of significant π-π stacking indicates limited electronic communication between adjacent molecules in the crystal lattice.
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