“…These properties include, for instance, large liquid ranges, broad electrochemical windows as well as low vapor pressures (Hallett & Welton, 2011;Welton, 1999). The title compound, which is a useful starting material in our ongoing efforts to investigate metal-containing ionic liquids (Peppel et al, 2010;Peppel et al, 2017;Peppel et al, 2019) was obtained as single crystals over a period of several weeks directly from its pure, highly viscous and supercooled liquid. 1-Benzyl-3-methylimidazolium bromide expands the range of known single-crystal X-ray structures of ionic liquids of the general formula (BenzMIm)X (X = Cl, PF 6 (Ji et al, 2010;Hillesheim & Scipione, 2014) with a third example (X = Br).…”