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in the title compound, C16H15N2+·PF6−, a precursor of N-heterocyclic carbene, the phenyl and benzyl rings are twisted away from the central imidazolium ring system, making dihedral angles of 70.30 (8) and 32.03 (10)°, respectively. The crystal structure is stabilized by C—H...F hydrogen bonds. Furthermore, P—F...π interactions involving imidazolium rings are observed [F...π = 2.9857 (16), P...π = 4.1630 (16) Å, P—F...π = 127.92 (6)°].