Bridged Heterocyclium Dicationic <i>closo-</i>Icosahedral Perfluoroborane, Borane, and Carborane Salts via Aqueous, Open-Air Benchtop Synthesis

Bridged Heterocyclium Dicationic <i>closo-</i>Icosahedral Perfluoroborane, Borane, and Carborane Salts via Aqueous, Open-Air Benchtop Synthesis