First evidence for the existence of hexafluoroantimonic(v) acid

Christophe Bour; Régis Guillot; Vincent Gandon

doi:10.1002/chem.201500334

First evidence for the existence of hexafluoroantimonic(v) acid

Chemistry. 2015 Apr 13;21(16):6066-9. doi: 10.1002/chem.201500334. Epub 2015 Mar 9.

Authors

Christophe Bour¹, Régis Guillot, Vincent Gandon

Affiliation

¹ ICMMO (UMR CNRS 8182), Université Paris-Sud, Bâtiment 420, 91405 Orsay cedex (France).

PMID: 25752294
DOI: 10.1002/chem.201500334

Abstract

By reacting IPr⋅InBr3 with AgSbF6 in dichloroethane at room temperature, we could obtain single crystals comprising [{(IPr⋅InBr3 )(Ag⋅(CH2 Cl)2 )}2 ][SbF6 ]2 (1) and two identical HSbF6 units. It is presumed that the reaction gave rise to [IPr⋅InBr3-x ][SbF6 ]x (x=1, 2, or 3) which reacted with adventitious water to give HSbF6 and [IPr⋅InBr3-x (OH)][SbF6 ]x-1 . The experiment was reproduced at 60 °C, eventually leading to the indium hydroxide [{IPr⋅In(OH)0.5 (H2 O)4.5 }2 ][SbF6 ]5 (2).

Keywords: density functional calculations; hexafluoroantimonic(V) acid; indium; structure elucidation; superacid systems.