Marcus A Juhasz, Ashlyn A Kamin
The title compound, 2C8H20N+·B12C12N12 2-, was prepared using microwave-promoted cross-coupling and crystallized from an aceto-nitrile-water solution. The structure was determined at 101 K, indicating the title compound crystallizes in the trigonal space group P3 and features a B12(CN)12 2- subunit with nearly icosa-hedral symmetry. The anionic subunit interacts with the Et4N+ cation in the structure by multiple weak Csp 3-H⋯N hydrogen bonds between CN groups on the anion and methyl and methyl-ene H atoms on the cation.