1-Benzylimidazolium hexafluorophosphate–1-benzylimidazole (1/1)

1-Benzylimidazolium hexafluorophosphate–1-benzylimidazole (1/1)

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In the title compound, C10H11N2+·PF6−·C10H10N2, the H atom involved in protonation is disordered equally between the cation and the neutral molecule.The dihedral angle between the phenyl and imidazole rings is 82.6 (2)°.

In the crystal Miniatures Kit structure, there are head-to-tail π–π stacking interactions between imidazole rings; the interplanar separation is 3.295 (1) Å and the centroid–centroid separation is 3.448 (3) Å.

In the centrosymmetric Spacecraft anion, two F atoms are disordered over two positions; the refined site-occupancy factors are 0.855 (11) and 0.145 (11).