Beschreibung:
<jats:p>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<jats:sub>5</jats:sub>H<jats:sub>8</jats:sub>BrN<jats:sub>2</jats:sub>
<jats:sup>+</jats:sup>·I<jats:sup>−</jats:sup>·0.33CHCl<jats:sub>3</jats:sub>, 2-bromo-1,3-dimethylimidazolium iodide dichloromethane hemisolvate, C<jats:sub>5</jats:sub>H<jats:sub>8</jats:sub>BrN<jats:sub>2</jats:sub>
<jats:sup>+</jats:sup>·I<jats:sup>−</jats:sup>·0.5CH<jats:sub>2</jats:sub>Cl<jats:sub>2</jats:sub>, and 2-bromo-1,3-dimethylimidazolium iodide hemi(diiodide), C<jats:sub>5</jats:sub>H<jats:sub>8</jats:sub>BrN<jats:sub>2</jats:sub>
<jats:sup>+</jats:sup>·I<jats:sup>−</jats:sup>·0.5I<jats:sub>2</jats:sub>, were obtained by methylation of 2-bromo-1-methylimidazole. They crystallized as CHCl<jats:sub>3</jats:sub>, CH<jats:sub>2</jats:sub>Cl<jats:sub>2</jats:sub> or I<jats:sub>2</jats:sub> 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.</jats:p>