Related Experiment Video
Updated: Jun 20, 2026

Imine Metathesis by Silica-Supported Catalysts Using the Methodology of Surface Organometallic Chemistry
Published on: October 18, 2019
Does [I3]+ act as an "[I]+" donor to CH3CN and N2O? Structure of [H3CCN-I-NCCH3]+ [AsF6]-
Margaret-Jane Crawford1, Michael Göbel, Konstantin Karaghiosoff
1Department of Chemistry and Biochemistry, Ludwig-Maximilian University, Butenandtstrasse 5-13 (Haus D), D-81377 Munich, Germany.
Abstract:
The solid state structure of the [(CH(3)CN)(2)I](+) cation in [(CH(3)CN)(2)I][AsF(6)] was determined using single crystal X-ray diffraction. The highly reactive cation was prepared by reaction of [I(3)][AsF(6)] with CH(3)CN in liquid SO(2). In the solid state, the CNI backbone consisting of seven atoms is linear and shows a dicoordinate iodine center. The ability of [I(3)][AsF(6)] to act as a source of "[I](+)" to CH(3)CN and N(2)O is compared, and the computed structures of the [CH(3)CNI](+), [(CH(3)CN)(2)I](+), [IN(2)O](+) and [ION(2)](+) cations are discussed.
Related Concept Videos
Aldehydes and Ketones with HCN: Cyanohydrin Formation Overview
Chirality at Nitrogen, Phosphorus, and Sulfur
A consequence of chirality is the need for enantiomeric resolution. While this is theoretically possible for all...
Aldehydes and Ketones with HCN: Cyanohydrin Formation Mechanism
Radicals: Electronic Structure and Geometry
Accordingly, the structure of a trivalent radical lies between the geometries of carbocations and carbanions. An sp2-hybridized carbocation is trigonal planar, while an sp3-hybridized carbanion is trigonal pyramidal. Here, the difference in geometry is...
Lewis Structures of Molecular Compounds and Polyatomic Ions
Chemical Ionization (CI) Mass Spectrometry

