Research Article: 4,5-Dibromo-1,2-dimethyl-1H-imidazol-3-ium bromide

Date Published: May 01, 2012

Publisher: International Union of Crystallography

Author(s): Mebarek Bahnous, Abdelmalek Bouraiou, Sofiane Bouacida, Thierry Roisnel, Ali Belfaitah.


In the title salt, C5H7Br2N2+·Br−, the cation and anion are connected by an N—H⋯Br hydrogen bond. In the crystal, there are inter­calated layers parallel to (10-2) in which bromide ions are located between the cations. Weak inter­molecular C—H⋯Br hydrogen bonds are also observed.

Partial Text

For the preparation of the title compound using the Ortoleva–King reaction, see: King (1944 ▶). For applications of C,N-substituted haloimidazole derivatives, see: Reepmeyer et al. (1975 ▶); Zamora et al. (2003 ▶); Schmidt & Schieffer (2003 ▶); Mashkovskii (2005 ▶); Amini et al. (2007 ▶).