1-[Bicyclo[4.2.0]octa-1(6),2,4-trien-3-yl]-3-(but-3-enyl)imidazolium bromide

Abstract

In the title compound, C15H17N2+·Br−, the cyclobutene and benzene rings are coplanar. The dihedral angle between the benzene and imidazolium rings is 21.2 (3)°. In the crystal structure, the C15H17N2+ and Br− ions are linked into a zigzag chain along the b axis by C—H...Br hydrogen bonds, and weak C—H...π interactions involving the benzene ring of a screw-related cation.