Related Experiment Video
Updated: May 7, 2026
From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
Published on: March 24, 2018
2-Cyano-anilinium iodide
David J Vumbaco1, Michael N Kammer, Lynn V Koplitz
1Department of Biological Sciences, Loyola University, New Orleans, LA 70118, USA.
The solid-state structure of a novel salt was determined, revealing cation-anion sheets arranged parallel to the (110) plane. These sheets are interconnected by specific hydrogen bonds, providing insight into crystal packing.
Area of Science:
- Crystal chemistry
- Solid-state chemistry
- Materials science
Background:
- Understanding the solid-state structure of ionic compounds is crucial for predicting their physical and chemical properties.
- Ionic salts with layered structures often exhibit unique electronic and mechanical behaviors.
Purpose of the Study:
- To elucidate the crystal structure of the title salt, C7H7N2 (+.)I(-).
- To investigate the intermolecular interactions governing the solid-state arrangement.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the atomic arrangement in the solid state.
- Analysis of the crystal structure to identify hydrogen bonding networks.
Main Results:
- The solid-state structure features distinct cation-anion sheets.
- These sheets are oriented parallel to the (110) crystallographic plane.
- N-H⋯I hydrogen bonds were identified as the primary linking interactions between the sheets.
Conclusions:
- The crystal packing is dictated by the formation of layered sheets and N-H⋯I hydrogen bonds.
- This structural motif provides a foundation for understanding the material's properties.
More Related Videos
09:54Chemoselective Preparation of 1-Iodoalkynes, 1,2-Diiodoalkenes, and 1,1,2-Triiodoalkenes Based on the Oxidative Iodination of Terminal Alkynes
Published on: September 12, 2018
12:27Synthesis of Hypervalent Iodonium Alkynyl Triflates for the Application of Generating Cyanocarbenes
Published on: September 8, 2013
Related Concept Videos
02:38Electrophilic Addition to Alkynes: Halogenation
Halogenation is another class of electrophilic addition reactions where a halogen molecule gets added across a π bond. In alkynes, the presence of two π bonds allows for the addition of two equivalents of halogens (bromine or chlorine). The addition of the first halogen molecule forms a trans-dihaloalkene as the major product and the cis isomer as the minor product. Subsequent addition of the second equivalent yields the tetrahalide.
01:13Electrophilic Aromatic Substitution: Fluorination and Iodination of Benzene
02:45Alkyl Halides
Alkyl halides are halogen-substituted alkanes wherein one or more hydrogen atoms of an alkane is replaced by a halogen atom such as fluorine, chlorine, bromine, or iodine. The carbon atom in an alkyl halide is bonded to the halogen atom, which is sp3-hybridized and exhibits a tetrahedral shape.
Unlike alkyl halides, compounds in which a halogen atom is bonded to an sp2 -hybridized carbon atom of a carbon-carbon double bond (C=C) are called vinyl halides. Whereas aryl...
01:20Diazonium Group Substitution with Halogens and Cyanide: Sandmeyer and Schiemann Reactions
01:19Diazonium Group Substitution: –OH and –H
01:14Nucleophilic Aromatic Substitution of Aryldiazonium Salts: Aromatic SN1
In the Sandmeyer reaction, for example, the diazonio group is replaced by a chloro, bromo,...