Acta Cryst. (2002). E58, o1142-o1144  [ doi:10.1107/S1600536802016756 ]

²N¹³,N^13'-Hydro-rac-2,2'-bis[2-(1-propylbenzimidazol-2yl)]biphenyl trifluoromethanesulfonate, the salt of a novel proton sponge

R. T. Stibrany, H. J. Schugar and J. A. Potenza

Abstract: The title salt, C₃₂H₃₁N₄⁺·CF₃SO₃^-, contains chains of monoprotonated rac-2,2'-bis[2-(1-propylbenzimidazol-2yl)]biphenyl cations separated by trifluoromethanesulfonate anions. The cations are linked by head-to-tail -interactions of their benzimidazole fragments. Protonation results in a strong hydrogen bond involving the imine N atoms, which gives the cations a tweezer or U shape.

Online 27 September 2002

Copyright © International Union of Crystallography
IUCr Webmaster