title: Bridged heterocyclium dicationic closo-icosahedral perfluoroborane, borane, and carborane salts via aqueous, open-air benchtop synthesis.
abstract: Thirteen bridged triazolium and imidazolium dicationic salts, which uniquely pair closo-icosahedral perfluoroborane [B(12)F(12)](2-), borane [B(12)H(12)](2-), or carborane [CB(11)H(12)](-) anionic species with unsaturated bridged heterocyclium dications, were synthesized using an aqueous benchtop method. This considerably extends the scope of a reported aqueous synthesis of binary [heterocyclium](2)[B(12)H(12)] and [heterocyclium][CB(11)H(12)] salts. Also, the one-step preparation of five new precursor bridged heterocyclium dicationic dihalide salts using conventional procedures and in one case a microwave-assisted method is described.
authors.affiliation: Air Force Research Laboratory, Propellants Branch (AFRL/RZSP), 10 East Saturn Blvd., Edwards AFB, California 93524-7680, USA. scottshack@roadrunner.com
authors.forename: Scott A
authors.initials: SA
authors.lastname: Shackelford
authors.forename: John L
authors.initials: JL
authors.lastname: Belletire
authors.forename: Jerry A
authors.initials: JA
authors.lastname: Boatz
authors.forename: Stefan
authors.initials: S
authors.lastname: Schneider
authors.forename: Amanda K
authors.initials: AK
authors.lastname: Wheaton
authors.forename: Brett A
authors.initials: BA
authors.lastname: Wight
authors.forename: Herman L
authors.initials: HL
authors.lastname: Ammon
authors.forename: Dmitry V
authors.initials: DV
authors.lastname: Peryshkov
authors.forename: Steven H
authors.initials: SH
authors.lastname: Strauss