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4-Methyl-N-(3-methyl-phen-yl)pyridin-2-amine
Acta Crystallographica. Section E, Structure Reports Online
|January 6, 2012
Summary
This study details the crystal structure of a twisted amine (C13H14N2), revealing how hydrogen bonds and pi-stacking interactions stabilize its unique molecular arrangement in a 3D crystal lattice.
Area of Science:
- Organic Chemistry
- Crystallography
- Supramolecular Chemistry
Background:
- Understanding molecular interactions is key to designing new materials.
- Crystal engineering relies on predicting and controlling intermolecular forces.
- The specific properties of twisted amines are not fully elucidated.
Purpose of the Study:
- To characterize the crystal structure of a novel twisted amine (C13H14N2).
- To investigate the role of hydrogen bonding and pi-pi interactions in crystal packing.
- To understand the supramolecular assembly of this organic molecule.
Main Methods:
- Single-crystal X-ray diffraction analysis.
- Analysis of dihedral angles and bond distances.
- Identification of hydrogen bonding (N-H...N) and other non-covalent interactions (C-H...π, π-π).
Main Results:
- The title amine exhibits a twisted conformation with a dihedral angle of 60.07(9)° between its rings.
- Centrosymmetric eight-membered {⋯HNCN}(2) synthons are formed via N-H⋯N hydrogen bonds.
- The crystal packing is further stabilized by C-H⋯π interactions and π-π stacking between pyridyl rings (centroid-centroid distance = 3.7535(12) Å).
Conclusions:
- The study elucidates the detailed crystal structure and intermolecular interactions of a twisted amine.
- Hydrogen bonding and π-π stacking are critical for the formation of a stable 3D crystal network.
- This structural insight contributes to the field of crystal engineering and supramolecular chemistry.
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