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3,3′-Di-n-butyl-1,1′-(p-phenyl­ene­dimethyl­ene)diimidazolium bis­(hexa­fluoro­phosphate)

Authors
Journal
Acta Crystallographica Section E Structure Reports Online
1600-5368
Publisher
International Union of Crystallography
Publication Date
Volume
66
Issue
4
Identifiers
DOI: 10.1107/s1600536810008536
Keywords
  • Organic Papers

Abstract

The asymmetric unit of the title N-heterocyclic carbene compound, C22H32N4 2+·2PF6 −, consists of one half of the N-heterocyclic carbene dication and one hexa­fluoro­phosphate anion. The dication lies across a crystallographic inversion center. The imidazole ring is twisted away from the central benzene ring, making a dihedral angle of 76.23 (6)°. The hexa­fluoro­phosphate anions link the cations into a three-dimensional network via inter­molecular C—H⋯F hydrogen bonds. A weak C—H⋯π inter­action further stabilizes the crystal structure.

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