Synthesis and crystal structures of 2-bromo-1,3-di­methyl­imidazolium iodides

Attempts at direct bromination of 1,3-di­methyl­imidazolium salts were futile. The title compounds, 2-bromo-1,3-di­methyl­imidazolium iodide chloro­form 0.33-solvate, C(5)H(8)BrN(2) (+)·I(−)·0.33CHCl(3), 2-bromo-1,3-di­methyl­imidazolium iodide di­chloro­methane hemisolvate, C(5)H(8)BrN(2) (+)·I(−)·...

Descripción completa

Detalles Bibliográficos
Autores principales: Lampl, Martin, Laus, Gerhard, Kahlenberg, Volker, Wurst, Klaus, Huppertz, Hubert, Schottenberger, Herwig
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2018
Materias:
Research Communications
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5946976/
https://www.ncbi.nlm.nih.gov/pubmed/29765754
http://dx.doi.org/10.1107/S2056989018003390
Descripción
Sumario:Attempts at direct bromination of 1,3-di­methyl­imidazolium salts were futile. The title compounds, 2-bromo-1,3-di­methyl­imidazolium iodide chloro­form 0.33-solvate, C(5)H(8)BrN(2) (+)·I(−)·0.33CHCl(3), 2-bromo-1,3-di­methyl­imidazolium iodide di­chloro­methane hemisolvate, C(5)H(8)BrN(2) (+)·I(−)·0.5CH(2)Cl(2), and 2-bromo-1,3-di­methyl­imidazolium iodide hemi(diiodide), C(5)H(8)BrN(2) (+)·I(−)·0.5I(2), were obtained by methyl­ation of 2-bromo-1-methyl­imidazole. They crystallized as CHCl(3), CH(2)Cl(2) or I(2) solvates/adducts. The Br atom acts as a σ-hole to accept short C—Br⋯I inter­actions. C—H⋯I hydrogen bonds are observed in each structure.

Ejemplares similares