Abstract
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)°].
Highlights
In the title compound, C16H15N2+ÁPF6À, a precursor of Nheterocyclic 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—HÁ Á ÁF hydrogen bonds
Related literature The first stable N-heterocyclic carbene was isolated by Arduengo et al (1991)
Summary
Key indicators: single-crystal X-ray study; T = 93 K; mean (C–C) = 0.003 A; R factor = 0.035; wR factor = 0.084; data-to-parameter ratio = 12.8. In the title compound, C16H15N2+ÁPF6À, a precursor of Nheterocyclic 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—HÁ Á ÁF hydrogen bonds. Related literature The first stable N-heterocyclic carbene was isolated by Arduengo et al (1991). See: Wan et al (2008). See: Newman et al (2007); Herrmann (2002); Yang et al (2009)
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