Bridged Heterocyclium Dicationic closo-Icosahedral Perfluoroborane, Borane, and Carborane Salts via Aqueous, Open-Air Benchtop Synthesis (Postprint)

Thirteen bridged triazolium and imidazolium dicationic salts, which uniquely pair closo-icosahedral perfluoroborane [B12F12]2-, borane [B12H12]2-, or carborane [CB11H12]- anionic species with unsaturated bridged heterocyclium dications, were synthesized using an aqueous benchtop method. This conside...

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Bibliographic Details
Main Authors: Shackelford, Scott A, Belletire, John L, Boatz, Jerry A, Schneider, Stefan, Wheaton, Amanda K, Wight, Brett A, Ammon, Herman L, Peryshkov, Dmitry V, Strauss, Steven H
Format: Report
Language:English
Subjects:
ANIONS
BENCHTOP SYNTHESIS METHOD
BORANES
BRIDGED SALTS
CARBORANES
CRYSTAL PACKING
Crystallography
FLUORINE COMPOUNDS
HALIDES
Physical Chemistry
PRECURSORS
SALTS
SYNTHESIS
SYNTHESIS(CHEMISTRY)
Test Facilities, Equipment and Methods
WUAFRLNAVY053Y
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Summary:Thirteen bridged triazolium and imidazolium dicationic salts, which uniquely pair closo-icosahedral perfluoroborane [B12F12]2-, borane [B12H12]2-, or carborane [CB11H12]- 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[B12H12] and [heterocyclium][CB11H12] salts. Also, the one-step preparation of five new precursor bridged heterocyclium dihalide salts using conventional procedures and in one case a microwave-assisted method is described. Published in Organic Letters, v12 n12 p2714-2717, 2010. Performed in collaboration with the University of Maryland, College Park, MD; and Colorado State University, Fort Collins, CO.