title: The complex story of a simple Brønsted acid: unusual speciation of HBr in an ionic liquid medium.
abstract: Crystalline solids, co-existing in equilibrium with the 3-methyl-1H-imidazolium bromohydrogenates(I) ionic liquid, have been characterised by X-ray diffraction analysis. The Brønsted acidic, homo-conjugate [H(2)Br(3)](-) anions presented are discussed in terms of their structure and reactivity, in efforts to advance the understanding of Brønsted acidity in ionic liquid media.
authors.affiliation: Department of Chemical Engineering, Process Chemistry Centre, Åbo Akademi University, Turku/Åbo, Finland. Gordon.Driver@abo.fi
authors.forename: Gordon W
authors.initials: GW
authors.lastname: Driver
authors.forename: Ilpo
authors.initials: I
authors.lastname: Mutikainen