1-(Benzyl-ideneamino)pyridinum iodide
Yong-Tao Cui1, Jian-Qiang Wang, Chun-Xiang Ji
1College of Science, Nanjing University of Technolgy, Xinmofan Road No. 5 Nanjing, Nanjing 210009, People's Republic of China.
The crystal structure of a novel compound reveals specific aromatic ring orientations. These interactions, including pi-pi contacts, likely contribute to the compound's overall stability.
Area of Science:
- Crystallography
- Supramolecular Chemistry
- Organic Chemistry
Background:
- Understanding the three-dimensional arrangement of molecules in the solid state is crucial for predicting material properties.
- Aromatic ring interactions, such as pi-pi stacking, play a significant role in molecular self-assembly and crystal packing.
Purpose of the Study:
- To elucidate the crystal structure of the title compound, C(12)H(11)N(2)(+)·I(-).
- To investigate the spatial arrangement of aromatic rings within the crystal lattice.
- To explore the potential stabilizing forces, specifically pi-pi contacts, in the crystal structure.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
- Analysis of the crystal structure included measuring dihedral angles between aromatic rings.
- Intermolecular interactions, including centroid-centroid distances for pi-pi contacts, were calculated.
Main Results:
- The title compound, C(12)H(11)N(2)(+)·I(-), was structurally characterized.
- A significant dihedral angle of 73.40(3)° was observed between the aromatic rings.
- π-π contacts were identified between pyridine and benzene/pyridine rings with centroid-centroid distances of 3.548(3) Å and 4.211(3) Å.
Conclusions:
- The determined crystal structure provides precise geometric information about the compound's molecular conformation.
- The observed π-π contacts suggest a role in stabilizing the crystal lattice.
- Further studies could explore the impact of these structural features on the compound's physical and chemical properties.
Related Concept Videos
Electrophilic Aromatic Substitution: Fluorination and Iodination of Benzene
Basicity of Heterocyclic Aromatic Amines
Diazonium Group Substitution with Halogens and Cyanide: Sandmeyer and Schiemann Reactions
Nucleophilic Aromatic Substitution of Aryldiazonium Salts: Aromatic SN1
In the Sandmeyer reaction, for example, the diazonio group is replaced by a chloro, bromo, or cyano...
Diazonium Group Substitution: –OH and –H
Nucleophilic Aromatic Substitution: Elimination–Addition


