Date Published: July 01, 2011
Publisher: International Union of Crystallography
Author(s): Jian-Yu Dong, Tian-Pa You.
In the title compound, C11H12BrN2+·Br−, the imidazole and phenyl rings are nearly perpendicular, making a dihedral angle of 87.71 (7)°. The crystal structure is stabilized by non-classical intermolecular C—H⋯Br hydrogen bonds and inversion-related molecules are linked through π–π interactions between the imidazole ring systems [centroid–centroid distance = 3.472 (6) Å].
Imidazolium salts are used to obtain transition metal complexes of N-heterocyclic carbenes, which have become an important class of catalysts in organometallic chemistry and organic synthesis, see: Marion & Nolan (2008 ▶); Herrmann (2002 ▶); Qin et al. (2006 ▶). For related structures, Guo et al. (2008 ▶); Liu et al. (2003 ▶).