3-[2-(Anilinocarbon-yl)eth-yl]-1-methyl-1H-imidazolium hexa-fluorido-phosphate.

The title compound, C(13)H(16)N(3)O(+)·PF(6) (-), which has an imide group in the imidazolium cation, is a new ionic liquid above its melting point. Two neighbouring mol-ecules are connected by a weak non-classical C-H⋯O hydrogen bond with the formation of centrosymmetric 14-membered dimers.