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.